CallataGuidesGet a local business phone number in Sierra Madre, CA
Sierra Madre's area code, prefixes and carriers from NANPA records, and how to put a Sierra Madre number in front of your customers.
- Area code
- 626
- Exchanges
- 17NANPA-assigned
- Carriers
- 12
- Population
- 10,775Census 2024 est.
Area codes in Sierra Madre
Sierra Madre, in Los Angeles County, California, had a Census-estimated population of 10,775 in July 2024. All 17 exchanges NANPA lists for its rate center are in area code 626. Sierra Madre is in the Pacific time zone.
According to NANPA's dialing-plan data, local calls within 626 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 626 | 17 | 100% | 1997 | none | Pacific |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Sierra Madre
12 carriers hold the 17 exchanges assigned to Sierra Madre's rate center. Frontier California INC. has the most, with 5. 15 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Frontier California INC. | 5 | 29% |
| T-mobile USA, INC. | 2 | 12% |
| Mcimetro Access Transmission Services LLC - CA | 1 | 5.9% |
| Teleport Communications America, LLC - CA | 1 | 5.9% |
| Pacific Bell (competitive) | 1 | 5.9% |
| Level 3 Telecom of California, LP - CA | 1 | 5.9% |
| Paetec Itel, LLC | 1 | 5.9% |
| Skye Telecom LLC d/b/a Skyetel | 1 | 5.9% |
| Mcimetro Access Transmission Services LLC | 1 | 5.9% |
| Onvoy, LLC - CA | 1 | 5.9% |
| Fractel, LLC | 1 | 5.9% |
| U.s. Telepacific Corp. d/b/a TPX Communications | 1 | 5.9% |
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 Sierra Madre
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Sierra Madre. The earliest assignment date recorded in the file for these codes is 2022. 2 of the 17 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 626 | 264, 306, 325, 351, 355, 466, 470, 507, 510, 604, 708, 745, 790, 822, 828, 836, 921 |
Source: NANPA utilized central office code file.
How local numbers work in Sierra Madre
What a caller sees as "local" is the area code plus prefix. In Sierra Madre, those come from the SIERRAMADR rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 626 numbers available change over time; porting an existing number is free.
Who does business near Sierra Madre
Sierra Madre 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Physician practices | 13,775 | 86,725 | 6.3 |
| Limited-service restaurants | 12,756 | 218,098 | 17.1 |
| Law offices | 11,330 | 74,795 | 6.6 |
| Full-service restaurants | 11,133 | 237,368 | 21.3 |
| Dental offices | 9,296 | 50,762 | 5.5 |
| Offices of real estate agents and brokers | 8,931 | 19,620 | 2.2 |
| Management consulting firms | 8,377 | 36,309 | 4.3 |
| Insurance agencies and brokerages | 5,786 | 31,913 | 5.5 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Sierra Madre business line
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
Porting a number you already use in Sierra Madre is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
A 14-person team is the benchmark here, the rounded average establishment size in the Los Angeles, CA metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $420.00 a month and Ooma Office Pro $349.30. Callata comes to $279.00 a month for 14 users ($99 a month with 5 users included, then $20 per additional user), below both.
| Provider (plan) | Pricing basis | Per month | Per 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 Sierra Madre, CA?
626. All exchanges NANPA lists for Sierra Madre are in 626.
How many phone companies have exchanges in Sierra Madre?
12, holding 17 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Sierra Madre 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 Sierra Madre?
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).