WATERTOWN prefixes in area code 605
NANPA records 17 assigned NXX blocks to rate center WATERTOWN in area code 605, 2.3% 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. 9 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (4), QWEST CORPORATION (3), NEW CINGULAR WIRELESS PCS, LLC - IL (2). The earliest assignment on record here is 2005-05-27 and the most recent 2025-08-28. 8 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 315, 615, 617, 629 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 605-237 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | – | no | yes |
| 605-303 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 2020-01-21 | yes | yes |
| 605-520 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 605-602 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2025-08-28 | yes | yes |
| 605-657 | Onvoy ONVOY, LLC - SD | 2020-11-12 | yes | yes |
| 605-753 | CLARITY TELECOM, LLC DBA BLUEPEAK | – | no | yes |
| 605-818 | RC COMMUNICATIONS, INC. - SD | 2006-10-10 | no | yes |
| 605-868 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 605-878 | MIDCONTINENT COMMUNICATIONS. - SD | 2005-05-27 | no | yes |
| 605-880 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | – | no | yes |
| 605-881 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 605-882 | Lumen QWEST CORPORATION | – | no | yes |
| 605-884 | Lumen QWEST CORPORATION | – | yes | yes |
| 605-886 | Lumen QWEST CORPORATION | – | no | yes |
| 605-902 | Bandwidth BANDWIDTH.COM CLEC, LLC - SD | 2022-07-21 | yes | yes |
| 605-954 | Bandwidth BANDWIDTH.COM CLEC, LLC - SD | – | yes | yes |
| 605-956 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 2008-08-19 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | Verizon | 4 | 23.5% |
| QWEST CORPORATION | Lumen | 3 | 17.6% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 2 | 11.8% |
| AERIAL COMMUNICATIONS, INC. | T-Mobile | 2 | 11.8% |
| BANDWIDTH.COM CLEC, LLC - SD | Bandwidth | 2 | 11.8% |
| ONVOY, LLC - SD | Onvoy | 1 | 5.9% |
| CLARITY TELECOM, LLC DBA BLUEPEAK | – | 1 | 5.9% |
| RC COMMUNICATIONS, INC. - SD | – | 1 | 5.9% |
| MIDCONTINENT COMMUNICATIONS. - SD | – | 1 | 5.9% |
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 WATERTOWN in area code 605?
17 blocks: 237, 303, 520, 602, 657, 753, 818, 868, 878, 880, 881, 882 and 5 more, all listed in the table above.
Which carriers have numbers in WATERTOWN?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (4 blocks), QWEST CORPORATION (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), AERIAL COMMUNICATIONS, INC. (2 blocks), BANDWIDTH.COM CLEC, LLC - SD (2 blocks), ONVOY, 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 WATERTOWN 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.