POTOSI prefixes in area code 573
NANPA records 6 assigned NXX blocks to rate center POTOSI in area code 573, 0.8% of the 786 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. 3 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (3), BRIGHTSPEED OF EAST MISSOURI, LLC (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2006-12-22 and the most recent 2025-09-03. 5 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 325, 608 – 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 |
|---|---|---|---|---|
| 573-210 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | – | yes | yes |
| 573-274 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 2025-09-03 | yes | yes |
| 573-436 | Brightspeed BRIGHTSPEED OF EAST MISSOURI, LLC | – | yes | yes |
| 573-438 | Brightspeed BRIGHTSPEED OF EAST MISSOURI, LLC | – | no | yes |
| 573-650 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 2021-01-20 | yes | yes |
| 573-854 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2006-12-22 | 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 - MO | Verizon | 3 | 50% |
| BRIGHTSPEED OF EAST MISSOURI, LLC | Brightspeed | 2 | 33.3% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 16.7% |
Frequently asked
Which prefixes belong to POTOSI in area code 573?
6 blocks: 210, 274, 436, 438, 650, 854. The table above gives the holder of each.
Which carriers have numbers in POTOSI?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (3 blocks), BRIGHTSPEED OF EAST MISSOURI, LLC (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is POTOSI 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.