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

MARSHALL prefixes in area code 909

NANPA records 20 assigned NXX blocks to rate center MARSHALL in area code 909, 2.5% of the 786 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. 9 holders hold those blocks, the largest being FRONTIER CALIFORNIA INC. (9), T-MOBILE USA, INC. (3), ONVOY, LLC - CA (2). The earliest assignment on record here is 2005-03-16 and the most recent 2020-09-28. 14 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 217, 269, 326, 430 – overlay codes cover the same geography, so a rate center is served by all of them.

20 assigned blocks – 2.5% of 909
9 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
909-352 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2013-02-01 yes yes
909-402 Onvoy ONVOY, LLC - CA 2016-02-15 yes yes
909-449 AT&T NEW CINGULAR WIRELESS PCS, LLC 2017-09-27 yes yes
909-473 Frontier FRONTIER CALIFORNIA INC. – yes yes
909-474 Frontier FRONTIER CALIFORNIA INC. – yes yes
909-475 Frontier FRONTIER CALIFORNIA INC. – yes yes
909-537 Windstream PAETEC ITEL, LLC 2005-03-16 yes yes
909-683 T-Mobile T-MOBILE USA, INC. 2015-04-01 yes yes
909-713 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
909-726 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
909-765 Onvoy ONVOY, LLC - CA 2016-10-10 yes yes
909-780 T-Mobile T-MOBILE USA, INC. 2019-07-16 yes yes
909-804 AT&T PACIFIC BELL (COMPETITIVE) – yes yes
909-871 T-Mobile T-MOBILE USA, INC. 2020-09-28 yes yes
909-880 Frontier FRONTIER CALIFORNIA INC. – no yes
909-881 Frontier FRONTIER CALIFORNIA INC. – no yes
909-882 Frontier FRONTIER CALIFORNIA INC. – no yes
909-883 Frontier FRONTIER CALIFORNIA INC. – no yes
909-886 Frontier FRONTIER CALIFORNIA INC. – no yes
909-887 Frontier FRONTIER CALIFORNIA INC. – no 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
FRONTIER CALIFORNIA INC. Frontier 9 45%
T-MOBILE USA, INC. T-Mobile 3 15%
ONVOY, LLC - CA Onvoy 2 10%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 5%
PAETEC ITEL, LLC Windstream 1 5%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 5%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 5%
PACIFIC BELL (COMPETITIVE) AT&T 1 5%

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 MARSHALL in area code 909?

20 blocks: 352, 402, 449, 473, 474, 475, 537, 683, 713, 726, 765, 780 and 8 more, all listed in the table above.

Which carriers have numbers in MARSHALL?

FRONTIER CALIFORNIA INC. (9 blocks), T-MOBILE USA, INC. (3 blocks), ONVOY, LLC - CA (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, LLC (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 MARSHALL 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 909

All 786 prefixes in 909