NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

POND prefixes in area code 636

NANPA records 7 assigned NXX blocks to rate center POND in area code 636, 1.6% 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. 3 holders hold those blocks, the largest being SOUTHWESTERN BELL (4), ONVOY, LLC - MO (2), PAETEC ITEL, LLC (1). The earliest assignment on record here is 2005-05-11 and the most recent 2024-03-29. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 1.6% of 636
3 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
636-273 AT&T SOUTHWESTERN BELL – yes yes
636-324 Onvoy ONVOY, LLC - MO – yes yes
636-405 AT&T SOUTHWESTERN BELL – yes yes
636-422 AT&T SOUTHWESTERN BELL 2005-05-11 yes yes
636-424 Onvoy ONVOY, LLC - MO 2024-03-29 yes yes
636-458 AT&T SOUTHWESTERN BELL – no yes
636-821 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

HolderBrandBlocksShare here
SOUTHWESTERN BELL AT&T 4 57.1%
ONVOY, LLC - MO Onvoy 2 28.6%
PAETEC ITEL, LLC Windstream 1 14.3%

Frequently asked

Which prefixes belong to POND in area code 636?

7 blocks: 273, 324, 405, 422, 424, 458, 821. The table above gives the holder of each.

Which carriers have numbers in POND?

SOUTHWESTERN BELL (4 blocks), ONVOY, LLC - MO (2 blocks), 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 POND 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.

Other rate centers in 636

All 435 prefixes in 636