MAMMOTHLKS prefixes in area code 760
NANPA records 7 assigned NXX blocks to rate center MAMMOTHLKS in area code 760, 0.9% of the 785 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. 5 holders hold those blocks, the largest being ONVOY, LLC - CA (2), FRONTIER CALIFORNIA INC. (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1). The earliest assignment on record here is 2001-04-23 and the most recent 2023-10-25. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 760-210 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2023-10-25 | yes | yes |
| 760-709 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2001-04-23 | yes | yes |
| 760-914 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2003-01-15 | yes | yes |
| 760-923 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 760-924 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 760-934 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 760-965 | Onvoy ONVOY, LLC - CA | 2001-05-18 | 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 |
|---|---|---|---|
| ONVOY, LLC - CA | Onvoy | 2 | 28.6% |
| FRONTIER CALIFORNIA INC. | Frontier | 2 | 28.6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 14.3% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 14.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 14.3% |
Frequently asked
Which prefixes belong to MAMMOTHLKS in area code 760?
7 blocks: 210, 709, 914, 923, 924, 934, 965. The table above gives the holder of each.
Which carriers have numbers in MAMMOTHLKS?
ONVOY, LLC - CA (2 blocks), FRONTIER CALIFORNIA INC. (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, 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 MAMMOTHLKS 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.