Pasadena Area Code 626: Cities, Scam Calls & Overlay Status

The Pasadena area code is 626. It covers most of the San Gabriel Valley in Los Angeles County, California: about 40 cities and communities including Pasadena, Alhambra, Arcadia, Monrovia, El Monte, and West Covina. It runs on Pacific Time and entered service on June 14, 1997 as a split from 818.

The region is projected to exhaust its prefixes in the fourth quarter of 2027, and an overlay area code has been requested but not yet approved.

Jump to: Cities | City table | Prefixes and carriers | Received a call? | Dialing | Overlay | Business use | FAQs

Quick facts

Fact	Detail
Region	Most of the San Gabriel Valley
Counties	Los Angeles County only
Largest city	Pasadena
In service since	June 14, 1997, split from area code 818
Time zone	Pacific (UTC-8 standard, UTC-7 daylight saving)
Dialing	10 digits required since October 24, 2021
Number format	(626) 555-0142 or +1 626 555 0142
New 626 numbers	Still available from providers holding inventory
Overlay	Requested Feb 2025, pending, no code assigned
Projected exhaust	Q4 2027
Bordering codes	661, 562, 657/714, 442/760, 840/909, 213/323, 747/818

Why trust this page. Every fact here is sourced to the CPUC, the FCC, or the North American Numbering Plan. We checked the CPUC’s 626 docket on August 6, 2026. Two details about 626 are widely misunderstood, its county coverage and its overlay status, and both are clarified below.

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Received a call from a 626 number?

A 626 caller ID usually means the displayed number belongs to the San Gabriel Valley numbering area in Los Angeles County. It does not prove the caller is physically there. Businesses can answer cloud-phone numbers from other locations, and scammers can spoof caller ID so a local-looking number appears on your screen.

Before returning an unfamiliar 626 call:

1. Search the full phone number, not just the 626 area code.
2. If the caller claims to represent a company, bank, or government agency, verify the organization independently.
3. Do not give an inbound caller passwords, verification codes, Social Security numbers, or banking details.
4. If the call might be legitimate, use a phone number from the organization’s official website, statement, or card rather than a number supplied by the caller.
5. If the call appears fraudulent, block it and use the reporting options in the scam-call section.

The key distinction is simple: an area code identifies the numbering area assigned to the displayed number, not the caller’s current physical location or identity.

Where is the 626 area code?

Entirely within Los Angeles County, covering most of the San Gabriel Valley east of downtown Los Angeles plus nearby areas in the northeastern part of the county.

Commonly confused: 626 and Orange County. You will sometimes see 626 described as covering two counties, with Orange County cities such as Anaheim, Buena Park, and Costa Mesa in its city list. The CPUC’s filing is specific: 626 “is located entirely within Los Angeles County.” Those Orange County cities are served by 714/657, and Long Beach by 562. If a city list includes them, it is worth checking against the CPUC record.

Which area codes border 626?

Seven, on every side. 626 sits in the middle of one of the densest numbering regions in North America, which is part of why its prefixes are running short.

Bordering code	Region	Direction from 626
818 / 747	San Fernando Valley, Burbank, Glendale	West and northwest
661	Santa Clarita, Antelope Valley	North
213 / 323	Central and downtown Los Angeles	West
562	Whittier, Downey, Long Beach	South and southwest
714 / 657	Northern Orange County	Southeast
909 / 840	Pomona Valley, Inland Empire	East
442 / 760	San Bernardino County desert	Far east

What cities are in the 626 area code?

Roughly 40 cities and unincorporated communities, all in Los Angeles County.

Largest cities: Pasadena, El Monte, West Covina, Alhambra, Monterey Park, Baldwin Park, Arcadia, Monrovia, Rosemead

Other cities: Azusa, Bradbury, Covina, Duarte, Glendora, Industry, Irwindale, La Puente, San Gabriel, San Marino, Sierra Madre, South El Monte, South Pasadena, Temple City, Walnut

Communities and CDPs: Altadena, Avocado Heights, Bassett, Charter Oak, Citrus, East Pasadena, East San Gabriel, Hacienda Heights, Mayflower Village, North El Monte, Rowland Heights, South San Gabriel, South San Jose Hills, Valinda, Vincent, West Puente Valley

Boundaries follow telephone rate centers, not city limits, and the CPUC describes 626 as covering parts of several of these cities.

Every city and community in 626, with population

Population figures below are US Census Bureau counts, the 2020 Census for every place and the Vintage 2024 Population Estimates for incorporated cities. Every place in 626 is in Los Angeles County, per the CPUC’s own filing.

The 39 places listed had a combined 2020 Census population of 1,416,016. Treat that as an upper bound rather than a headcount for the area code: numbering boundaries follow rate centers, so 626 covers only part of some of these places.

Incorporated cities

City	County	2020 Census	2024 estimate
Pasadena	Los Angeles	138,699	137,195
West Covina	Los Angeles	109,501	106,920
El Monte	Los Angeles	109,450	104,639
Alhambra	Los Angeles	82,868	80,279
Baldwin Park	Los Angeles	72,176	69,247
Monterey Park	Los Angeles	61,096	57,996
Arcadia	Los Angeles	56,681	54,472
Glendora	Los Angeles	52,558	50,101
Covina	Los Angeles	51,268	49,245
Rosemead	Los Angeles	51,185	49,582
Azusa	Los Angeles	50,000	48,383
San Gabriel	Los Angeles	39,568	37,926
La Puente	Los Angeles	38,062	36,670
Monrovia	Los Angeles	37,931	37,787
Temple City	Los Angeles	36,494	34,989
Walnut	Los Angeles	28,430	27,250
South Pasadena	Los Angeles	26,943	25,656
Duarte	Los Angeles	21,727	23,493
South El Monte	Los Angeles	19,567	19,121
San Marino	Los Angeles	12,513	12,105
Sierra Madre	Los Angeles	11,268	10,775
Irwindale	Los Angeles	1,472	1,459
Bradbury	Los Angeles	921	883
Industry (City of Industry)	Los Angeles	264	256

Unincorporated communities (census-designated places)

Los Angeles County governs these directly; they have no city council of their own. The Census Bureau publishes decennial counts for them but no annual estimates, so only the 2020 column applies.

Community	County	2020 Census
Hacienda Heights	Los Angeles	54,191
Rowland Heights	Los Angeles	48,231
Altadena	Los Angeles	42,846
West Puente Valley	Los Angeles	22,959
East San Gabriel	Los Angeles	22,769
Valinda	Los Angeles	22,437
South San Jose Hills	Los Angeles	19,855
Vincent	Los Angeles	15,714
Avocado Heights	Los Angeles	13,317
Citrus	Los Angeles	10,243
Charter Oak	Los Angeles	9,739
South San Gabriel	Los Angeles	7,920
East Pasadena	Los Angeles	6,021
Mayflower Village	Los Angeles	5,402
Bassett	Los Angeles	not a separate 2020 Census place

Bassett is a recognized San Gabriel Valley community, but the Census Bureau did not publish it as its own place in 2020, so no official count exists for it. We would rather leave the cell empty than estimate one.

626 prefixes, rate centers, and carriers

A 626 phone number is 626-NXX-XXXX. The NXX is the central-office prefix, and how those prefixes are handed out is what the CPUC’s depletion date is really about.

A prefix is allocated one of two ways. It can go to a single code holder, which takes all 10,000 numbers under it. Or it can be pooled, split into ten blocks of 1,000 numbers that different carriers hold separately. Pooling exists so a carrier needing a few hundred numbers does not have to consume a whole prefix.

Here is what the assignment records showed for 626 when we retrieved them on August 8, 2026.

Measure	Count
NXX prefixes assigned in 626	734
— of those, held whole by one code holder	222
— of those, pooled into thousand-blocks	512
Individual 1,000-number blocks listed	5,063
Distinct carriers (OCNs) appearing in 626	47
Rate centers	11
LATA	730

The two record types add up: 734 code-holder records plus 5,063 block records is the 5,797 rows in the source file.

What these counts are not

They are allocation figures, not usage figures. A prefix assigned to a carrier says nothing about how many of its numbers reach a customer, and we are not going to convert one into the other.

The CPUC has actually measured the difference for this exact area code. Its Report on the 626 Area Code, filed July 25, 2001, found that of roughly 7.7 million usable numbers in 626, about 5.5 million, or two-thirds, were not in use at the time. That is a 2001 finding and we are not presenting it as current, but it is the clearest evidence that assigned is not the same as occupied.

We also do not publish a “percent of capacity” figure for 626. Doing that needs a denominator of assignable prefixes, and we could not source one for 626 from CPUC, FCC, or NANPA records. The Q4 2027 depletion date on this page is the CPUC’s own projection, quoted from its 626 relief page, not a number we calculated.

626 rate centers

A rate center is the billing and boundary unit that numbering actually uses, and it does not track city limits. Alhambra, not Pasadena, holds the most 626 prefixes.

Rate center	Prefixes assigned	Carriers present
Alhambra	169	35
Pasadena	128	34
Covina-Baldwin Park	126	33
El Monte	88	32
La Puente	64	28
Azusa-Glendora	48	27
Arcadia	47	31
Monrovia	34	24
Sierra Madre	17	25
San Gabriel Canyon	12	21
Los Angeles (DA 14)	1	1

The prefix column totals 734. “Carriers present” counts every carrier appearing in that rate center as a code holder or a block holder, so those figures do not total 47: a carrier active in eight rate centers is counted in each. All 11 sit in LATA 730 (Los Angeles).

Which carriers hold 626 numbers?

Forty-seven carriers appear in 626: 38 hold at least one whole prefix, and 42 hold at least one thousand-block. The two columns below are separate things, so do not add them together.

Carrier (OCN)	Type	Prefixes held whole	1,000-blocks held
T-Mobile USA, Inc.	Wireless	106	1,283
Pacific Bell	ILEC	116	209
New Cingular Wireless PCS, LLC	Wireless	82	520
Onvoy, LLC - CA	CLEC	43	618
Frontier California Inc.	ILEC	75	154
Cellco Partnership dba Verizon Wireless - CA	Wireless	39	431
Bandwidth.com CLEC, LLC - CA	CLEC	14	403
U.S. TelePacific Corp. dba TPX Communications	CLEC	39	120
Level 3 Communications, LLC - CA	CLEC	30	182
MetroPCS Networks, LLC	CLEC	16	271
Fractel, LLC	CLEC	35	56
MCImetro Access Transmission Services LLC	CLEC	21	78
Teleport Communications America, LLC - CA	CLEC	18	57
Peerless Network of California, LLC - CA	CLEC	8	86
Paetec Itel, LLC	CLEC	11	53

A further 32 carriers hold 81 whole prefixes and 542 blocks between them.

Sorted by who holds the whole prefix, the 734 break down as 301 to competitive local exchange carriers, 242 to wireless carriers, and 191 to incumbent local exchange carriers. Two things follow. No single carrier controls 626. And the incumbent is no longer the center of gravity: Pacific Bell still holds the most whole prefixes at 116, but T-Mobile holds far more numbers overall once pooled blocks are counted.

View the full 626 prefix allocation dataset — CSV, 5,797 rows, one per code-holder or thousand-block record, with rate center, OCN, carrier, carrier type, and LATA. This is the raw evidence behind every count above.

Can I still get a 626 number?

Potentially, yes. A provider that has assignable 626 inventory may still be able to issue a new number, and an existing 626 number may be portable to another provider when the port is eligible. The CPUC’s projected prefix exhaust does not mean every provider will have the same inventory until that date, so availability should be checked with the provider at the time you order.

Which nearby cities are not in 626?

City	Actual area code
Burbank, Van Nuys, La Cañada Flintridge	818 / 747
Diamond Bar, Pomona, San Dimas, Claremont	909 / 840
Whittier, Downey, Santa Fe Springs	562
Anaheim, Buena Park, Costa Mesa	714 / 657
Montebello, Pico Rivera	323 / 562

How does 626 compare with nearby Los Angeles area codes?

The codes around 626 serve different parts of greater Los Angeles and neighboring Southern California regions. A nearby code is not automatically interchangeable with 626.

Area code	Main area	Relationship to 626
626	San Gabriel Valley	The numbering area covered by this guide
213 / 323	Central and downtown Los Angeles	West of 626
562	Whittier, Downey, Long Beach area	South and southwest of 626
818 / 747	San Fernando Valley, Burbank, Glendale	West and northwest of 626
909 / 840	Pomona Valley and Inland Empire	East of 626
714 / 657	Northern Orange County	Southeast of 626

This distinction matters when checking a caller’s claimed location or choosing a local business number: adjacent area codes can represent different communities even when the places are only a short drive apart.

Who uses the 626 area code?

A mix of households and small businesses, plus several institutions well known outside the region. Pasadena alone accounts for the California Institute of Technology and the Rose Bowl. Nearby are the Huntington Library in San Marino, Santa Anita Park in Arcadia, and City of Hope in Duarte.

For a business, that mix is the point. A 626 number can be useful when customers expect a San Gabriel Valley contact number, for example a dentist, medical clinic, plumber, HVAC contractor, insurance agency, law firm, real estate office, or another organization serving the area.

Can businesses outside California use a 626 number?

A business does not necessarily have to answer a 626 number from a physical office in California. Cloud and VoIP phone systems can route calls to staff in other locations, subject to the provider’s number availability and service rules. That is useful for distributed teams, but it also means a 626 caller ID should not be treated as proof that a company or caller is physically in Pasadena or the San Gabriel Valley.

A familiar local number may affect how a customer perceives a call, but this page does not claim that choosing a 626 number improves Google rankings or guarantees customer trust.

What time zone is the 626 area code?

Pacific time: UTC-8 in standard time, UTC-7 during daylight saving. From the East Coast that is a three-hour lag. 9:00 a.m. in New York is 6:00 a.m. in Pasadena.

When it is 9:00 a.m. in 626	Local time
Vancouver, Seattle (Pacific)	9:00 a.m.
Denver, Calgary, Edmonton (Mountain)	10:00 a.m.
Chicago, Winnipeg (Central)	11:00 a.m.
New York, Toronto (Eastern)	12:00 p.m.
Halifax (Atlantic)	1:00 p.m.

Two exceptions worth knowing before you schedule a call: most of Arizona and all of Saskatchewan do not observe daylight saving, so their offset from 626 changes twice a year.

How do you write and dial a 626 number?

Ten digits, always, whether the call is local or not.

Context	Format
Written, US convention	(626) 555-0142
Dialed inside the US or Canada	1 626 555 0142
International standard (E.164)	+1 626 555 0142
From outside North America	exit code + 1 + 626 + 7 digits

Store numbers in E.164 (+16265550142) in any CRM or phone system. It is the format carriers, APIs, and caller ID databases expect, and it survives being exported between systems.

Calling 626 from Canada

Dial 1 626 then the seven-digit number, the same as a domestic US call. The United States and Canada share the North American Numbering Plan, so there is no international exit code between them.

Sharing a numbering plan is not the same as sharing a rate. Many Canadian mobile and landline plans bill US calls as long distance or under a separate add-on, so check your plan rather than assuming the call is included.

Practical dialing examples

Using the fictional example number (626) 555-0142:

Calling from	Example
New York	1 626 555 0142
Toronto	1 626 555 0142
London	00 1 626 555 0142
Sydney	0011 1 626 555 0142
A phone that accepts + notation	+1 626 555 0142

International exit prefixes vary by country and carrier, so +1 626 555 0142 is the safest format to save in contacts.

Why was the 626 area code created?

Because 818 ran out of prefixes. When 818 split from 213 in 1984 it covered both the San Fernando Valley and the San Gabriel Valley. Growth through the early 1990s (second lines, fax machines, pagers, and early mobile phones) consumed its available prefixes faster than planners had projected.

The CPUC’s answer was a geographic split. The San Gabriel Valley half was cut loose as 626 on June 14, 1997, and every phone number in it changed. That cost is exactly why regulators now prefer overlays: an overlay adds capacity without making anyone renumber. The relief plan currently pending for 626 proposes an overlay, not a second split.

Is the 626 area code getting a new area code?

Not yet. As of August 6, 2026, no overlay has been approved and no new area code number has been assigned.

Date	Event
June 14, 1997	626 enters service, split from 818
Oct 24, 2021	10-digit dialing becomes mandatory
Feb 20, 2025	NANPA files Application A.25-02-004 for an all-services overlay
Feb 28, 2026	Date the industry asked for a decision, now passed
Q4 2027	Projected prefix exhaust
Aug 2026	CPUC decision: still pending

Commonly confused: 626 and area code 840. Area code 840 is sometimes listed as a 626 overlay. It is actually the overlay for 909, the Inland Empire, which borders 626 to the east. The mix-up is an easy one, because numbering records list “840/909” as one of 626’s neighboring pairs. For 626 itself, the CPUC lists the overlay application as pending and the new code as not yet assigned.

We will update this page when the CPUC publishes its decision.

Do you need to dial 10 digits in 626?

Yes, since October 24, 2021, and this is unrelated to the overlay. In July 2020 the FCC designated 988 as the national Suicide and Crisis Lifeline number. Area codes already using 988 as a working local prefix had to end seven-digit dialing so 988 could route unambiguously.

Nine California codes were affected: 209, 530, 562, 626, 650, 707, 925, 949, and 951. The 988 shortcut went live July 16, 2022, nine months later, and the two dates are often conflated.

Equipment still holding seven-digit strings in 626 stopped working in 2021. Alarm panels, fax machines, and PBX forwarding rules are the usual casualties.

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Are calls from 626 numbers scams?

The area code alone tells you nothing. 626 is legitimate, but like every area code, its numbers get spoofed. Caller ID spoofing lets a caller display any number they choose, and showing one that matches the recipient’s local prefix is called neighbor spoofing, because familiar numbers get answered more often. A genuine Pasadena call and a spoofed one look identical.

Two patterns recur often enough to name. First, Social Security impersonation: an automated call claims your SSN has been suspended or an arrest warrant is pending. The SSA is unambiguous that it will never suspend your Social Security number, demand immediate payment, threaten arrest, or require payment by gift card.

Second, a wrong-number text (“u at home?”) that apologizes, makes conversation, then moves you to WhatsApp for an investment scam.

Why we describe scam types rather than percentages. You will find precise-looking figures for 626 elsewhere, such as “14.69% of complaints are home improvement calls.” Those come from voluntary crowd-reporting apps, where the sample size and collection method are not published. We report the patterns regulators document, and leave percentages to sources that can show their working.

What to do about a suspicious 626 call:

1. Never confirm your name, SSN, or bank details to an inbound caller.
2. Hang up and call back on a number you sourced yourself, never the one the caller gives you.
3. Report Social Security impersonation to the SSA Office of the Inspector General at oig.ssa.gov; other fraud to reportfraud.ftc.gov.
4. Forward scam texts to 7726 (SPAM). Blocking helps little on its own, since spoofers rotate numbers constantly.

If your own 626 business number shows as “Spam Likely,” that is a call authentication and reputation problem, not an area code problem, and it is covered in our VoIP security and encryption guide.

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What an overlay would mean for you

An overlay adds a second area code across the same geography. It does not change any existing number.

• Existing 626 numbers keep working. No renumbering, no porting, no cost. That is why regulators now prefer overlays to splits.
• New numbers may be issued in the new code, so two businesses on the same street can end up with different area codes.
• Dialing rules do not change, because 626 already requires 10 digits.
• “626” becomes less specific as a location cue once a second code serves the same geography.

Example: imagine Business A opens in the 626 region before an overlay and receives a 626 number. After an overlay launches, Business B can open on the same street and receive the new code. Neither business moved; only the available numbering inventory changed. Existing 626 customers keep their numbers.

Your deadline is prefix exhaust in Q4 2027, not the CPUC decision. If you manage phone systems, confirm your PBX, CRM, and dialer validation rules will accept the new code. Overlays are landing across the country at a steady pace. Our roundup of the newest US area codes tracks which ones went live this year.

Can I keep my 626 number if I move or change providers?

Often, but not automatically. The FCC’s local number portability rules generally let customers keep an existing telephone number when switching providers within the same geographic area, provided the number is eligible and the new provider supports the port. Moving to a different geographic area can change what is possible, so confirm eligibility before cancelling the old service.

How long does porting a 626 number take?

There is no single safe completion time to promise for every port. Timing depends on the type of number, the old and new providers, whether the account information matches, and whether the request needs manual review. Keep the existing service active until the receiving provider confirms that the port is complete.

How to get a 626 number

This section is DialPhone’s product view.

A new 626 number depends on current provider inventory. If you already control a 626 number, porting may let you keep it when changing providers, subject to eligibility.

Before choosing a provider:

• Check whether 626 inventory is currently available.
• Ask whether there is a fee to port an existing number in or out.
• Confirm SMS/MMS support if texting matters to your workflow.
• Verify 911/E911 support and configuration requirements.
• Ask what happens if 626 inventory becomes unavailable while your order is being processed.

DialPhone provides local business numbers with AI receptionist, call routing, and SMS on a single plan. You can check current 626 availability when you start a free trial or compare plans.

If buying is what you came for rather than reading, our 626 area code number page covers availability, pricing, and porting in one place. This guide stays on the reference side: who 626 covers, how it is numbered, and what the CPUC has decided.

If you are comparing providers more broadly, our small business VoIP guide explains the factors to evaluate beyond the area code itself.

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626 area code FAQ

Where is the 626 area code located? +

In Los Angeles County, California, covering most of the San Gabriel Valley east of downtown Los Angeles. Pasadena is its largest city.

Does the 626 area code cover Orange County? +

No. 626 is entirely within Los Angeles County. Anaheim, Buena Park, and Costa Mesa are sometimes listed under 626, but they are served by 714 and 657.

Is the 626 area code changing? +

Not yet. Overlay application A.25-02-004 has been pending at the CPUC since February 2025, and prefixes are projected to run out in Q4 2027.

Has 626 been overlaid by area code 840? +

No. 840 is an overlay of area code 909, which borders 626 to the east. The two are frequently confused.

Can you still get a new 626 phone number? +

Yes. Prefixes are projected to last into late 2027, and VoIP providers holding 626 inventory can still assign new numbers. You can also port an existing 626 number to a new provider.

How do I call a 626 number from Canada? +

Dial 1, then 626, then the seven-digit number, the same as a domestic US call, because Canada and the United States share the North American Numbering Plan.

Your carrier may still bill it as long distance.

Why do I have to dial 10 digits for a local 626 call? +

Because 988 became the national Suicide and Crisis Lifeline number. 626 used 988 as a working local prefix, so seven-digit dialing ended on October 24, 2021.

Is a call from a 626 number a scam? +

Not by default. 626 is a legitimate area code, but spoofing makes caller ID unreliable.

Never confirm personal details to an inbound caller. Hang up and call back on a number you sourced yourself.

Can a business outside California use a 626 number? +

Potentially, yes. Cloud and VoIP systems can route a local number to staff elsewhere, subject to provider inventory and service rules.

A 626 caller ID therefore does not prove that the caller is physically in California.

Can I keep my 626 number if I move or switch providers? +

Often, especially when switching providers within the same geographic area, but portability is subject to eligibility and provider support. Confirm the port before cancelling your existing service.

Methodology

Location, county, docket status, and the Q4 2027 depletion projection come from the CPUC’s 626 relief page, checked August 6, 2026. In-service date, community list, and bordering codes come from North American Numbering Plan records; dialing dates from the FCC; scam guidance from the SSA and its Office of the Inspector General.

CPUC Report 8881 is cited here for one thing only: its finding that assigned numbers and numbers in use are different quantities. It is dated July 25, 2001 and its figures describe 626 as it was then. It is not the source of the 2027 projection.

City and community populations are US Census Bureau figures: the 2020 Census (P.L. 94-171 redistricting file, table P1) for every place, and the Vintage 2024 Population Estimates for incorporated cities. Prefix, rate center, and carrier counts come from the NANPA/LERG central-office code assignment records for 626, retrieved August 8, 2026, and the full extract is published as a CSV so the counts can be checked. Allocations change, so the retrieval date is stated rather than implied.

We reviewed the pages currently ranking for “626 area code” in August 2026 to see where published information diverges. Two points, county coverage and the 840 overlay, are commonly stated differently elsewhere. Where secondary sources differ from CPUC or NANP records, we follow the primary record and say so.

We describe scam patterns rather than crowd-reported percentages, which have no published methodology. This page is re-checked quarterly and on any decision in docket A.25-02-004.

Sources

• CPUC: 626 area code relief
• CPUC: Report on the 626 Area Code (Report 8881), July 25, 2001 utilization study
• CPUC: Application A.25-02-004, NANPA overlay request
• FCC: 10-digit dialing fact sheet
• FCC: Local number portability
• SSA: Protect yourself from Social Security scams
• SSA OIG: Identify the scam
• FTC: Report fraud
• US Census Bureau: 2020 Census P.L. 94-171 redistricting data, California
• US Census Bureau: Vintage 2024 city and town population estimates
• NANPA/LERG central-office code assignments for 626
• DialPhone: full 626 prefix allocation dataset (CSV, 5,797 rows)

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Related resources:

• 626 area code number availability, pricing, and porting
• 818 area code landing page
• 909 area code landing page
• Newest US area codes 2026: latest overlays
• Number porting guide
• How to call internationally from the US
• Business communications glossary