CallataGuides

Get a local business phone number in Avalon, CA

Avalon's area codes, prefixes and carriers from NANPA records, and how to put a Avalon number in front of your customers.

Area code
424 / 310
Exchanges
9NANPA-assigned
Carriers
9
Population
3,267Census 2024 est.

Area codes in Avalon

With 3,267 residents in the Census 2024 estimate, Avalon sits in Los Angeles County, California. NANPA lists 9 exchanges for its rate center across 2 area codes; 424 has the most (6, 67%). 424 is part of an overlay with 310, so a new local number in Avalon may carry any of those codes depending on which have numbers available. Avalon is in the Pacific time zone.

According to NANPA's dialing-plan data, local calls within 424 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.

Area codes with exchanges in Avalon, CA
Area codeExchanges hereShareIn service sinceOverlay withTime zone
424667%2006310Pacific
310333%1991424Pacific

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Who holds Avalon phone exchanges

9 carriers hold the 9 exchanges assigned to Avalon's rate center. Pacific Bell has the most, with 1. 8 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Carriers holding exchanges in Avalon, CA
Carrier (NANPA operating company)ExchangesShare
Pacific Bell111%
Ip Horizon LLC111%
North County Communication Corporation - CA111%
Mcimetro Access Transmission Services LLC111%
Level 3 Communications, LLC - CA111%
Onvoy, LLC - CA111%
Voip Innovations, LLC111%
AT&T Enterprises, LLC111%
Fractel, LLC111%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Local prefixes for Avalon

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Avalon. The earliest assignment date recorded in the file for these codes is 2007. 1 of the 9 were assigned in 2020 or later.

Prefixes assigned in Avalon, CA
Area codePrefixes (NXX)
310510, 929, 949
424226, 334, 377, 432, 738, 855

Source: NANPA utilized central office code file.

When Avalon's exchanges were assigned

Assignment dates show when each block of Avalon numbers was added to the local supply.

Avalon, CA: exchanges by decade assigned
Decade assignedExchangesShare
2000s233%
2010s350%
2020s117%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Rate centers and local calling in Avalon

What a caller sees as "local" is the area code plus prefix. In Avalon, those come from the AVALON rate center, as recorded by NANPA.

New local numbers are drawn from carrier inventory, so the exact 424 numbers available change over time; porting an existing number is free.

Who does business near Avalon

Avalon is part of the Los Angeles-Long Beach-Anaheim, CA metro area, home to 12.9 million people in 2024. County Business Patterns counted 411,949 business establishments in the Los Angeles, CA metro area in 2023, employing 5,568,514 people. The largest sectors by establishment count are professional, scientific, and technical services (61,848), health care and social assistance (53,869), and retail trade (38,838).

Selected industries in the Los Angeles, CA metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Physician practices13,77586,7256.3
Limited-service restaurants12,756218,09817.1
Law offices11,33074,7956.6
Full-service restaurants11,133237,36821.3
Dental offices9,29650,7625.5
Offices of real estate agents and brokers8,93119,6202.2
Management consulting firms8,37736,3094.3
Insurance agencies and brokerages5,78631,9135.5

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

A Avalon number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

If you already have a number in Avalon, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Los Angeles, CA metro area, 14 users on RingCentral RingEX Core come to $420.00 a month and on Ooma Office Pro $349.30, at month-to-month list prices checked September 28, 2026. On Callata the same 14 people cost $279.00 a month, less than either per-seat plan.

Monthly list price for a 14-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$279.00$3,348.00
Quo (Starter)$19.00 per user$266.00$3,192.00
Nextiva (Core)$23.00 per user$322.00$3,864.00
Ooma (Office Pro)$24.95 per user$349.30$4,191.60
Dialpad (Standard)$27.00 per user$378.00$4,536.00
RingCentral (RingEX Core)$30.00 per user$420.00$5,040.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Avalon, CA?

Avalon has exchanges in 424 and 310; 424 has the most.

How many phone companies have exchanges in Avalon?

9, holding 9 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Avalon business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Avalon?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 14 users come to $279.00 a month. For comparison, 14 users on RingCentral RingEX Core list at $420.00 a month (checked September 28, 2026).