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

SIDNEY prefixes in area code 308

NANPA records 6 assigned NXX blocks to rate center SIDNEY in area code 308, 1.3% of the 465 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 QWEST CORPORATION (2), CHARTER IP ENABLED SERVICES, LLC (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE (1). The earliest assignment on record here is 2002-03-26 and the most recent 2008-06-17. 3 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 207, 217, 252, 254 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 1.3% of 308
5 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
308-203 Charter CHARTER IP ENABLED SERVICES, LLC 2008-06-17 yes yes
308-249 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE – yes yes
308-250 N.E. COLORADO CELLULAR, INC. 2003-10-24 no yes
308-254 Lumen QWEST CORPORATION – no yes
308-255 Lumen QWEST CORPORATION 2002-03-26 no yes
308-524 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NE – 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
QWEST CORPORATION Lumen 2 33.3%
CHARTER IP ENABLED SERVICES, LLC Charter 1 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE Verizon 1 16.7%
N.E. COLORADO CELLULAR, INC. – 1 16.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - NE AT&T 1 16.7%

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 SIDNEY in area code 308?

6 blocks: 203, 249, 250, 254, 255, 524. The table above gives the holder of each.

Which carriers have numbers in SIDNEY?

QWEST CORPORATION (2 blocks), CHARTER IP ENABLED SERVICES, LLC (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE (1 block), N.E. COLORADO CELLULAR, INC. (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - NE (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SIDNEY 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 308

All 465 prefixes in 308