NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2004-11-17 803-210-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2004-11-17 803-420-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 CAMDEN SC
2004-11-17 803-582-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BATESBURG SC
2004-11-16 803-370-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ROCK HILL SC
2004-11-16 803-585-9XXX 9000–9999Assigned METROPCS, INC. 5562 ORANGEBURG SC
2004-11-12 803-760-1XXX 1000–1999Assigned SOUTH CAROLINA NET, INC. - SC 1784 COLUMBIA SC
2004-11-10 803-528-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2004-10-26 803-380-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BATH SC
2004-10-20 803-244-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BAMBERG SC
2004-10-20 803-388-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 PROSPERITY SC
2004-10-20 803-392-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GRANITEVL SC
2004-10-20 803-443-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 NEWELLENTN SC
2004-10-20 803-485-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SUMMERTON SC
2004-10-20 803-666-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SHAWAFBHTS SC
2004-10-20 803-746-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 LAKE WYLIE SC
2004-10-20 803-867-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BEECH IS SC
2004-10-20 803-932-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHPNLTLMTS SC
2004-10-20 803-948-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHPNLTLMTN SC
2004-10-20 803-994-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 WHITMIRE SC
2004-10-13 803-528-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2004-10-04 803-234-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2004-10-04 803-234-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2004-09-29 803-257-9XXX 9000–9999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 NO AUGUSTA SC
2004-09-29 803-740-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2004-09-15 803-528-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2004-09-14 803-666-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SHAWAFBHTS SC
2004-09-02 803-381-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-381-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-409-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-09-02 803-409-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2004-08-23 803-572-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 CAMDEN SC
2004-08-23 803-604-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 BATESBURG SC
2004-08-23 803-675-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 CLOVER SC
2004-08-23 803-692-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 BISHOPVL SC
2004-08-23 803-696-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 MANNING SC
2004-08-23 803-741-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2004-08-20 803-234-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2004-08-17 803-705-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 7273 COLUMBIA SC
2004-08-10 803-528-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2004-08-10 803-528-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2004-08-09 803-295-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2004-07-15 803-246-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 LANCASTER SC
2004-07-15 803-246-4XXX 4000–4999Assigned METROPCS, INC. 5562 LANCASTER SC
2004-07-15 803-246-5XXX 5000–5999Assigned METROPCS, INC. 5562 LANCASTER SC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.