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

ESCALON prefixes in area code 209

NANPA records 5 assigned NXX blocks to rate center ESCALON in area code 209, 0.6% of the 784 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 BANDWIDTH.COM CLEC, LLC - CA (1), T-MOBILE USA, INC. (1), NEW CINGULAR WIRELESS PCS, LLC (1). The earliest assignment on record here is 2010-10-19 and the most recent 2016-11-04. 5 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 code 350 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 209
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
209-691 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
209-701 T-Mobile T-MOBILE USA, INC. 2010-10-19 yes yes
209-804 AT&T NEW CINGULAR WIRELESS PCS, LLC 2016-11-04 yes yes
209-821 Onvoy ONVOY, LLC - CA – yes yes
209-838 AT&T PACIFIC 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

HolderBrandBlocksShare here
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 20%
T-MOBILE USA, INC. T-Mobile 1 20%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 20%
ONVOY, LLC - CA Onvoy 1 20%
PACIFIC BELL AT&T 1 20%

Frequently asked

Which prefixes belong to ESCALON in area code 209?

5 blocks: 691, 701, 804, 821, 838. The table above gives the holder of each.

Which carriers have numbers in ESCALON?

BANDWIDTH.COM CLEC, LLC - CA (1 block), T-MOBILE USA, INC. (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), ONVOY, LLC - CA (1 block), PACIFIC BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ESCALON 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 209

All 784 prefixes in 209