SNFN GRHL prefixes in area code 818
NANPA records 21 assigned NXX blocks to rate center SNFN GRHL in area code 818, 2.7% of the 781 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 9 holders hold those blocks, the largest being FRONTIER CALIFORNIA INC. (7), NEW CINGULAR WIRELESS PCS, LLC (5), LEVEL 3 COMMUNICATIONS, LLC - CA (3). The earliest assignment on record here is 2001-02-22 and the most recent 2025-01-02. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 747 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 818-217 | T-Mobile T-MOBILE USA, INC. | 2007-06-13 | yes | yes |
| 818-271 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 818-282 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 818-294 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-02-25 | yes | yes |
| 818-322 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 818-359 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 818-360 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-363 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-366 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-368 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-417 | Charter ONVOY SPECTRUM, LLC | 2025-01-02 | yes | yes |
| 818-472 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-04-19 | no | yes |
| 818-488 | AT&T PACIFIC BELL (COMPETITIVE) | – | yes | yes |
| 818-491 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 818-800 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-06-26 | no | yes |
| 818-831 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-832 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 818-900 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2010-04-22 | yes | yes |
| 818-910 | SHELCOMM | 2001-02-22 | no | yes |
| 818-923 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2006-10-16 | yes | yes |
| 818-966 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-10-06 | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| FRONTIER CALIFORNIA INC. | Frontier | 7 | 33.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 5 | 23.8% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 3 | 14.3% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 4.8% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 4.8% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 4.8% |
| PACIFIC BELL (COMPETITIVE) | AT&T | 1 | 4.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 4.8% |
| SHELCOMM | – | 1 | 4.8% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to SNFN GRHL in area code 818?
21 blocks: 217, 271, 282, 294, 322, 359, 360, 363, 366, 368, 417, 472 and 9 more, all listed in the table above.
Which carriers have numbers in SNFN GRHL?
FRONTIER CALIFORNIA INC. (7 blocks), NEW CINGULAR WIRELESS PCS, LLC (5 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (3 blocks), T-MOBILE USA, INC. (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), ONVOY SPECTRUM, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is SNFN GRHL a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.