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

FLANDREAU prefixes in area code 605

NANPA records 9 assigned NXX blocks to rate center FLANDREAU in area code 605, 1.2% of the 745 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (3), QWEST CORPORATION (2), CLARITY TELECOM, LLC DBA BLUEPEAK (2). The earliest assignment on record here is 2022-06-23 and the most recent 2025-04-01. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.2% of 605
5 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
605-530 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
605-531 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 2022-06-23 yes yes
605-534 Lumen QWEST CORPORATION – yes yes
605-573 CLARITY TELECOM, LLC DBA BLUEPEAK – no yes
605-633 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – yes yes
605-684 CLARITY TELECOM, LLC DBA BLUEPEAK – no yes
605-701 RINGER MOBILE, INC. 2025-04-01 yes yes
605-864 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – yes yes
605-997 Lumen QWEST CORPORATION – 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD Verizon 3 33.3%
QWEST CORPORATION Lumen 2 22.2%
CLARITY TELECOM, LLC DBA BLUEPEAK – 2 22.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 11.1%
RINGER MOBILE, INC. – 1 11.1%

Frequently asked

Which prefixes belong to FLANDREAU in area code 605?

9 blocks: 530, 531, 534, 573, 633, 684, 701, 864, 997. The table above gives the holder of each.

Which carriers have numbers in FLANDREAU?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (3 blocks), QWEST CORPORATION (2 blocks), CLARITY TELECOM, LLC DBA BLUEPEAK (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), RINGER MOBILE, 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 FLANDREAU 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 605

All 745 prefixes in 605