NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 843
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-10-26 | 843-306-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | CLIO | SC |
| 2004-10-26 | 843-350-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | BLENHEIM | SC |
| 2004-10-26 | 843-400-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MCCOLL | SC |
| 2004-10-26 | 843-418-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | LATTA | SC |
| 2004-10-20 | 843-242-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | ISLE PALMS | SC |
| 2004-10-20 | 843-420-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | TIMMONSVL | SC |
| 2004-10-20 | 843-588-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | FOLLYBEACH | SC |
| 2004-10-20 | 843-883-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | SULLIVNSIS | SC |
| 2004-10-05 | 843-331-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2004-09-29 | 843-310-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LOWCOUNTRY | SC |
| 2004-09-29 | 843-330-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-09-29 | 843-360-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MYRTLE BCH | SC |
| 2004-09-29 | 843-415-9XXX | 9000–9999 | Assigned | POWERTEL ATLANTA LICENSES, INC. | 7473 | HILTONHEAD | SC |
| 2004-09-29 | 843-472-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FLORENCE | SC |
| 2004-09-24 | 843-314-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PAWLEYS IS | SC |
| 2004-09-01 | 843-235-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | PAWLEYS IS | SC |
| 2004-09-01 | 843-401-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | KINGSTREE | SC |
| 2004-08-24 | 843-486-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 288B | SUMMERVL | SC |
| 2004-08-23 | 843-281-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | NMYRTLEBCH | SC |
| 2004-08-23 | 843-380-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | JOHNSONVL | SC |
| 2004-08-23 | 843-420-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | TIMMONSVL | SC |
| 2004-08-23 | 843-699-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | LAKE CITY | SC |
| 2004-08-23 | 843-904-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | GEORGETOWN | SC |
| 2004-08-23 | 843-944-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | DARLINGTON | SC |
| 2004-08-09 | 843-312-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | MONCKS COR | SC |
| 2004-08-09 | 843-312-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | MONCKS COR | SC |
| 2004-08-05 | 843-460-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-08-05 | 843-460-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-08-05 | 843-460-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-08-05 | 843-460-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-08-02 | 843-305-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIDGELAND | SC |
| 2004-07-26 | 843-256-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ISLE PALMS | SC |
| 2004-07-26 | 843-256-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | ISLE PALMS | SC |
| 2004-07-08 | 843-633-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | FOLLYBEACH | SC |
| 2004-07-08 | 843-883-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SULLIVNSIS | SC |
| 2004-07-02 | 843-513-1XXX | 1000–1999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | CHARLESTON | SC |
| 2004-06-23 | 843-380-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | JOHNSONVL | SC |
| 2004-06-23 | 843-547-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | RIDGELAND | SC |
| 2004-06-01 | 843-253-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | CHERAW | SC |
| 2004-05-13 | 843-631-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | EDISTO IS | SC |
| 2004-04-29 | 843-213-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | MYRTLE BCH | SC |
| 2004-03-16 | 843-534-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-16 | 843-534-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-16 | 843-557-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-16 | 843-557-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-16 | 843-864-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-16 | 843-864-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-03-15 | 843-864-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2004-02-17 | 843-420-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | TIMMONSVL | SC |
| 2004-02-17 | 843-944-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | DARLINGTON | SC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.