Harbison-alpine, CA — rate center
- State
- California
- Active prefixes
- 12
- Carriers
- 6
- Pooled prefixes
- 11
- LATA
- 732
- Metro area
- San Diego-Cula Vista-Carlsbad, CA MSA
The Harbison-alpine rate center (California) anchors 12 active prefixes under area codes 619, 858. Rate centers, not city limits, are what phone numbers are legally tied to.
The rate center currently carries 12 working prefixes across 6 carriers. 11 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the San Diego-Cula Vista-Carlsbad, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 732.
Multiple area codes over one rate center (619/858) is the overlay pattern: same geography, different first three digits.
A Harbison-alpine prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Harbison-alpine
| Prefix | Code holder | Pooled |
|---|---|---|
| 619-320 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 619-324 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 619-369 | ONVOY, LLC - CA | Yes |
| 619-445 | PACIFIC BELL | No |
| 619-485 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 619-566 | ONVOY, LLC - CA | Yes |
| 619-612 | COMCAST PHONE OF CALIFORNIA, LLC | Yes |
| 619-659 | PACIFIC BELL | Yes |
| 619-722 | COMCAST PHONE OF CALIFORNIA, LLC | Yes |
| 619-914 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
FAQ
What area code is Harbison-alpine, CA?
Harbison-alpine is served by 2 area codes — 619, 858 — which overlay the same territory.
How many prefixes does Harbison-alpine have?
12 active NXX prefixes are anchored to this rate center in NANPA records, held by 6 carriers.
Is a call from a Harbison-alpine prefix really from Harbison-alpine?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.