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
2011-03-11 803-402-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 WINNSBORO SC
2011-03-09 803-549-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 CAMDEN SC
2011-03-07 803-500-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PROSPERITY SC
2011-03-03 803-724-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2011-02-28 803-450-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BARNWELL SC
2011-02-28 803-514-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 AIKEN SC
2011-02-28 803-580-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BATESBURG SC
2011-02-28 803-596-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ORANGEBURG SC
2011-02-25 803-220-9XXX 9000–9999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-02-24 803-200-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2011-02-24 803-200-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2011-02-23 803-307-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2011-02-23 803-307-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2011-02-18 803-552-6XXX 6000–6999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-02-16 803-526-8XXX 8000–8999Assigned METROPCS, INC. 5562 YORK SC
2011-02-16 803-529-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-16 803-529-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-02-14 803-580-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2011-02-11 803-298-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 CHPNLTLMTS SC
2011-02-09 803-291-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SRNGFLSLLY SC
2011-02-03 803-552-2XXX 2000–2999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-02-03 803-552-3XXX 3000–3999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-02-03 803-616-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 ROCK HILL SC
2011-02-03 803-616-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 ROCK HILL SC
2011-02-03 803-616-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 ROCK HILL SC
2011-02-02 803-938-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMTER SC
2011-01-31 803-250-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2011-01-31 803-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2011-01-31 803-415-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2011-01-26 803-250-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2011-01-12 803-402-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINNSBORO SC
2011-01-07 803-552-7XXX 7000–7999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-01-07 803-597-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NEWBERRY SC
2011-01-07 803-998-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWELLENTN SC
2011-01-03 803-431-4XXX 4000–4999Assigned METROPCS, INC. 5562 FORT MILL SC
2011-01-03 803-431-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT MILL SC
2010-12-30 803-216-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-12-30 803-250-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-12-30 803-310-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CAMDEN SC
2010-12-29 803-571-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BARNWELL SC
2010-12-29 803-847-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SUMTER SC
2010-12-16 803-250-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2010-12-16 803-653-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SRNGFLSLLY 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.