Crestline, CA — rate center
- State
- California
- Active prefixes
- 8
- Carriers
- 7
- Pooled prefixes
- 7
- LATA
- 730
- Metro area
- Riverside-San Bernardino-Ontario, CA MSA
In NANP numbering, Crestline, California is a rate center — the anchor point for local numbers. It is reached through 840, 909 (multiple area codes serve it).
8 central-office prefixes are currently anchored to this rate center, held by 7 different carriers. Pooling applies to 7 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 730.
Because 840, 909 all serve this territory, two Crestline numbers can look completely different while being neighbors — check the prefix, not just the area code.
Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.
Prefixes anchored to Crestline
| Prefix | Code holder | Pooled |
|---|---|---|
| 909-245 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 909-338 | FRONTIER CALIFORNIA INC. | No |
| 909-487 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | Yes |
| 909-589 | T-MOBILE USA, INC. | Yes |
| 909-698 | ONVOY, LLC - CA | Yes |
| 909-715 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 909-897 | ONVOY, LLC - CA | Yes |
FAQ
What area code is Crestline, CA?
Crestline is served by 2 area codes — 840, 909 — which overlay the same territory.
How many prefixes does Crestline have?
8 active NXX prefixes are anchored to this rate center in NANPA records, held by 7 carriers.
Is a call from a Crestline prefix really from Crestline?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.