GRAYSUMMIT prefixes in area code 636
NANPA records 5 assigned NXX blocks to rate center GRAYSUMMIT in area code 636, 1.1% 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. 4 holders hold those blocks, the largest being SOUTHWESTERN BELL (2), T-MOBILE USA, INC. (1), PAETEC ITEL, LLC (1). The earliest assignment on record here is 2001-05-07 and the most recent 2019-10-24. 5 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 |
|---|---|---|---|---|
| 636-259 | T-Mobile T-MOBILE USA, INC. | 2001-05-07 | yes | yes |
| 636-402 | Windstream PAETEC ITEL, LLC | 2001-07-05 | yes | yes |
| 636-451 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 636-732 | FRACTEL, LLC | 2019-10-24 | yes | yes |
| 636-742 | 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 |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 2 | 40% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 20% |
| PAETEC ITEL, LLC | Windstream | 1 | 20% |
| FRACTEL, LLC | – | 1 | 20% |
Frequently asked
Which prefixes belong to GRAYSUMMIT in area code 636?
5 blocks: 259, 402, 451, 732, 742. The table above gives the holder of each.
Which carriers have numbers in GRAYSUMMIT?
SOUTHWESTERN BELL (2 blocks), T-MOBILE USA, INC. (1 block), PAETEC ITEL, LLC (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 GRAYSUMMIT 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.