PALARM prefixes in area code 501
NANPA records 9 assigned NXX blocks to rate center PALARM in area code 501, 1.4% of the 631 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. 7 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (2), SOUTHWESTERN BELL (2), LEVEL 3 TELECOM OF ARKANSAS, LLC - AR (1). The earliest assignment on record here is 2015-03-25 and the most recent 2026-06-03. 9 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 |
|---|---|---|---|---|
| 501-271 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2018-01-15 | yes | yes |
| 501-483 | Lumen LEVEL 3 TELECOM OF ARKANSAS, LLC - AR | – | yes | yes |
| 501-549 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2023-10-17 | yes | yes |
| 501-598 | IP HORIZON LLC | 2026-06-03 | yes | no |
| 501-734 | Windstream WINDSTREAM COMMUNICATIONS, INC. - AR | – | yes | yes |
| 501-799 | FRACTEL, LLC | 2020-07-15 | yes | yes |
| 501-800 | Onvoy ONVOY, LLC - AR | 2015-03-25 | yes | yes |
| 501-803 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 501-851 | AT&T SOUTHWESTERN BELL | – | 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 |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 2 | 22.2% |
| SOUTHWESTERN BELL | AT&T | 2 | 22.2% |
| LEVEL 3 TELECOM OF ARKANSAS, LLC - AR | Lumen | 1 | 11.1% |
| IP HORIZON LLC | – | 1 | 11.1% |
| WINDSTREAM COMMUNICATIONS, INC. - AR | Windstream | 1 | 11.1% |
| FRACTEL, LLC | – | 1 | 11.1% |
| ONVOY, LLC - AR | Onvoy | 1 | 11.1% |
Frequently asked
Which prefixes belong to PALARM in area code 501?
9 blocks: 271, 483, 549, 598, 734, 799, 800, 803, 851. The table above gives the holder of each.
Which carriers have numbers in PALARM?
NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), SOUTHWESTERN BELL (2 blocks), LEVEL 3 TELECOM OF ARKANSAS, LLC - AR (1 block), IP HORIZON LLC (1 block), WINDSTREAM COMMUNICATIONS, INC. - AR (1 block), FRACTEL, 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 PALARM 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.