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

YANKTON prefixes in area code 605

NANPA records 14 assigned NXX blocks to rate center YANKTON in area code 605, 1.9% 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. 8 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (3), QWEST CORPORATION (3), CLARITY TELECOM, LLC DBA BLUEPEAK (2). The earliest assignment on record here is 2001-11-12 and the most recent 2021-06-23. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

14 assigned blocks – 1.9% of 605
8 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
605-260 CLARITY TELECOM, LLC DBA BLUEPEAK – no yes
605-500 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2006-12-04 no yes
605-522 T-Mobile METROPCS, INC. 2021-06-23 yes yes
605-653 Bandwidth BANDWIDTH.COM CLEC, LLC - SD – yes yes
605-655 Lumen QWEST CORPORATION – yes yes
605-660 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – no yes
605-661 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
605-664 CLARITY TELECOM, LLC DBA BLUEPEAK – no yes
605-665 Lumen QWEST CORPORATION – no yes
605-668 Lumen QWEST CORPORATION – no yes
605-689 MIDCONTINENT COMMUNICATIONS. - SD 2007-03-05 no yes
605-760 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – yes yes
605-857 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-11-12 yes yes
605-975 Onvoy ONVOY, LLC - SD 2019-06-11 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 21.4%
QWEST CORPORATION Lumen 3 21.4%
CLARITY TELECOM, LLC DBA BLUEPEAK – 2 14.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD Verizon 2 14.3%
METROPCS, INC. T-Mobile 1 7.1%
BANDWIDTH.COM CLEC, LLC - SD Bandwidth 1 7.1%
MIDCONTINENT COMMUNICATIONS. - SD – 1 7.1%
ONVOY, LLC - SD Onvoy 1 7.1%

Frequently asked

Which prefixes belong to YANKTON in area code 605?

14 blocks: 260, 500, 522, 653, 655, 660, 661, 664, 665, 668, 689, 760 and 2 more, all listed in the table above.

Which carriers have numbers in YANKTON?

NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), QWEST CORPORATION (3 blocks), CLARITY TELECOM, LLC DBA BLUEPEAK (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (2 blocks), METROPCS, INC. (1 block), BANDWIDTH.COM CLEC, LLC - SD (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is YANKTON 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