San Diego:mira Mesa Da, CA — rate center
- State
- California
- Active prefixes
- 69
- Carriers
- 21
- Pooled prefixes
- 58
- LATA
- 732
- Metro area
- San Diego-Cula Vista-Carlsbad, CA MSA
The San Diego:mira Mesa Da rate center (California) anchors 69 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 69 working prefixes across 21 carriers. 58 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 San Diego:mira Mesa Da 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 San Diego:mira Mesa Da
| Prefix | Code holder | Pooled |
|---|---|---|
| 619-877 | FRACTEL, LLC | Yes |
FAQ
What area code is San Diego:mira Mesa Da, CA?
San Diego:mira Mesa Da is served by 2 area codes — 619, 858 — which overlay the same territory.
How many prefixes does San Diego:mira Mesa Da have?
69 active NXX prefixes are anchored to this rate center in NANPA records, held by 21 carriers.
Is a call from a San Diego:mira Mesa Da prefix really from San Diego:mira Mesa Da?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.