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

RIO LINDA prefixes in area code 916

NANPA records 15 assigned NXX blocks to rate center RIO LINDA in area code 916, 1.9% of the 785 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. 10 holders hold those blocks, the largest being BANDWIDTH.COM CLEC, LLC - CA (3), T-MOBILE USA, INC. (2), LEVEL 3 COMMUNICATIONS, LLC - CA (2). The earliest assignment on record here is 2001-03-01 and the most recent 2021-11-03. 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 code 279 – overlay codes cover the same geography, so a rate center is served by all of them.

15 assigned blocks – 1.9% of 916
10 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
916-237 MATRIX TELECOM, LLC. S/I/I TNCI - CA – yes yes
916-238 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
916-243 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
916-269 Telnyx TELNYX LLC 2017-03-17 yes yes
916-335 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
916-432 T-Mobile T-MOBILE USA, INC. 2002-01-28 yes yes
916-468 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
916-675 Onvoy ONVOY, LLC - CA – yes yes
916-796 T-Mobile T-MOBILE USA, INC. 2001-03-01 yes yes
916-915 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
916-931 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2019-02-08 yes yes
916-943 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
916-991 AT&T PACIFIC BELL – no yes
916-992 AT&T PACIFIC BELL – yes yes
916-994 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2021-11-03 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 3 20%
T-MOBILE USA, INC. T-Mobile 2 13.3%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 2 13.3%
PACIFIC BELL AT&T 2 13.3%
MATRIX TELECOM, LLC. S/I/I TNCI - CA – 1 6.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 6.7%
TELNYX LLC Telnyx 1 6.7%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 6.7%
ONVOY, LLC - CA Onvoy 1 6.7%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 6.7%

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 RIO LINDA in area code 916?

15 blocks: 237, 238, 243, 269, 335, 432, 468, 675, 796, 915, 931, 943 and 3 more, all listed in the table above.

Which carriers have numbers in RIO LINDA?

BANDWIDTH.COM CLEC, LLC - CA (3 blocks), T-MOBILE USA, INC. (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), PACIFIC BELL (2 blocks), MATRIX TELECOM, LLC. S/I/I TNCI - CA (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RIO LINDA 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 916

All 785 prefixes in 916