IMPERIAL prefixes in area code 636
NANPA records 10 assigned NXX blocks to rate center IMPERIAL in area code 636, 2.3% of the 435 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. 6 holders hold those blocks, the largest being SOUTHWESTERN BELL (4), LEVEL 3 COMMUNICATIONS, LLC - MO (2), CHARTER IP ENABLED SERVICES, LLC (1). The earliest assignment on record here is 2001-05-07 and the most recent 2002-01-29. 9 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 codes 308, 432, 442, 724 – 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 |
|---|---|---|---|---|
| 636-223 | Charter CHARTER IP ENABLED SERVICES, LLC | 2002-01-29 | yes | yes |
| 636-461 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 636-464 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 636-467 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 636-500 | Onvoy ONVOY, LLC - MO | – | yes | yes |
| 636-525 | AT&T SOUTHWESTERN BELL | 2001-07-05 | yes | yes |
| 636-547 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MO | – | yes | yes |
| 636-633 | T-Mobile T-MOBILE USA, INC. | 2001-05-07 | yes | yes |
| 636-642 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MO | – | yes | yes |
| 636-741 | Windstream PAETEC ITEL, LLC | – | 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 |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 4 | 40% |
| LEVEL 3 COMMUNICATIONS, LLC - MO | Lumen | 2 | 20% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 1 | 10% |
| ONVOY, LLC - MO | Onvoy | 1 | 10% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 10% |
| PAETEC ITEL, LLC | Windstream | 1 | 10% |
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 IMPERIAL in area code 636?
10 blocks: 223, 461, 464, 467, 500, 525, 547, 633, 642, 741. The table above gives the holder of each.
Which carriers have numbers in IMPERIAL?
SOUTHWESTERN BELL (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - MO (2 blocks), CHARTER IP ENABLED SERVICES, LLC (1 block), ONVOY, LLC - MO (1 block), T-MOBILE USA, INC. (1 block), PAETEC ITEL, 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 IMPERIAL 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.