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

KLAMATHFLS prefixes in area code 541

NANPA records 20 assigned NXX blocks to rate center KLAMATHFLS in area code 541, 2.6% of the 783 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. 7 holders hold those blocks, the largest being QWEST CORPORATION (8), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR (3), UNITED STATES CELLULAR - OR (3). The earliest assignment on record here is 2001-06-18 and the most recent 2005-11-17. 13 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 458 – overlay codes cover the same geography, so a rate center is served by all of them.

20 assigned blocks – 2.6% of 541
7 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
541-205 Lumen LEVEL 3 COMMUNICATIONS, LLC - OR – yes yes
541-238 Lumen LEVEL 3 COMMUNICATIONS, LLC - OR 2001-06-18 yes yes
541-273 Lumen QWEST CORPORATION – no yes
541-274 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 2002-02-25 yes yes
541-281 UNITED STATES CELLULAR - OR – yes yes
541-331 T-Mobile METROPCS, INC. – yes yes
541-363 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-04-25 yes yes
541-539 AT&T NEW CINGULAR WIRELESS PCS, LLC 2005-11-17 yes yes
541-591 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR – yes yes
541-810 UNITED STATES CELLULAR - OR – yes yes
541-850 Lumen QWEST CORPORATION – no yes
541-851 Lumen QWEST CORPORATION – yes yes
541-880 Lumen QWEST CORPORATION – yes yes
541-882 Lumen QWEST CORPORATION – no yes
541-883 Lumen QWEST CORPORATION – no yes
541-884 Lumen QWEST CORPORATION – no yes
541-885 Lumen QWEST CORPORATION – no yes
541-887 CAL-ORE COMMUNICATIONS, INC. - OR 2004-10-13 yes yes
541-891 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR – no yes
541-892 UNITED STATES CELLULAR - OR – 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 8 40%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR Verizon 3 15%
UNITED STATES CELLULAR - OR – 3 15%
LEVEL 3 COMMUNICATIONS, LLC - OR Lumen 2 10%
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 10%
METROPCS, INC. T-Mobile 1 5%
CAL-ORE COMMUNICATIONS, INC. - OR – 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 KLAMATHFLS in area code 541?

20 blocks: 205, 238, 273, 274, 281, 331, 363, 539, 591, 810, 850, 851 and 8 more, all listed in the table above.

Which carriers have numbers in KLAMATHFLS?

QWEST CORPORATION (8 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR (3 blocks), UNITED STATES CELLULAR - OR (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - OR (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), METROPCS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KLAMATHFLS 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 541

All 783 prefixes in 541