NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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, last 30 days — NPA 803
NEW CINGULAR WIRELESS PCS, LLC - GA 4
HD CARRIER LLC 2
ONVOY, LLC - SC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-08-05 803-870-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-8XXX 8000–8999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-05 803-870-9XXX 9000–9999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2005-08-02 803-941-8XXX 8000–8999Assigned SOUTH CAROLINA NET, INC. - SC 1784 CHPNLTLMTS SC
2005-07-19 803-666-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SHAWAFBHTS SC
2005-07-19 803-937-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 ORANGEBURG SC
2005-07-19 803-937-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 ORANGEBURG SC
2005-07-19 803-937-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 ORANGEBURG SC
2005-07-14 803-295-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2005-07-13 803-244-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BAMBERG SC
2005-07-13 803-265-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BEECH IS SC
2005-07-13 803-353-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 EASTOVER SC
2005-07-13 803-392-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GRANITEVL SC
2005-07-13 803-426-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 NO AUGUSTA SC
2005-07-13 803-426-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 NO AUGUSTA SC
2005-07-05 803-720-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SUMTER SC
2005-06-27 803-740-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2005-06-27 803-740-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2005-06-21 803-656-5XXX 5000–5999Assigned PBT COMMUNICATIONS, INC. - SC 3453 LK WYLIE W SC
2005-06-21 803-658-5XXX 5000–5999Assigned PBT COMMUNICATIONS, INC. - SC 3453 SHARON SC
2005-06-21 803-746-5XXX 5000–5999Assigned PBT COMMUNICATIONS, INC. - SC 3453 LAKE WYLIE SC
2005-06-21 803-820-5XXX 5000–5999Assigned PBT COMMUNICATIONS, INC. - SC 3453 HICKORYGRV SC
2005-06-20 803-760-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2005-06-15 803-675-6XXX 6000–6999Assigned PBT COMMUNICATIONS, INC. - SC 3453 CLOVER SC
2005-06-08 803-223-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2005-06-08 803-234-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2005-06-08 803-234-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2005-06-07 803-818-5XXX 5000–5999Assigned PBT COMMUNICATIONS, INC. - SC 3453 YORK SC
2005-06-01 803-928-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 ORANGEBURG SC
2005-05-27 803-979-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2005-05-24 803-223-1XXX 1000–1999Assigned METROPCS, INC. 5562 COLUMBIA SC
2005-05-17 803-389-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2005-05-17 803-389-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2005-05-13 803-719-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-13 803-719-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-13 803-719-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-13 803-719-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-13 803-719-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-13 803-719-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2005-05-09 803-223-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2005-05-09 803-371-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 ROCK HILL SC
2005-03-31 803-335-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 AIKEN SC
2005-03-31 803-335-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 AIKEN SC
2005-03-31 803-335-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 AIKEN SC
2005-03-16 803-227-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2005-03-16 803-339-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 MILL CREEK 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.