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
2010-12-09 803-500-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PROSPERITY SC
2010-11-22 803-216-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-11-10 803-334-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 JOHNSTON SC
2010-11-10 803-497-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C COLUMBIA SC
2010-11-10 803-847-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SUMTER SC
2010-11-09 803-597-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 NEWBERRY SC
2010-11-05 803-200-0XXX 0000–0999Assigned PBT COMMUNICATIONS, INC. - SC 3453 COLUMBIA SC
2010-10-22 803-443-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWELLENTN SC
2010-10-22 803-580-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2010-10-22 803-580-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2010-10-22 803-610-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2010-10-22 803-610-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2010-10-18 803-310-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CAMDEN SC
2010-10-18 803-387-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ORANGEBURG SC
2010-10-18 803-402-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WINNSBORO SC
2010-10-08 803-596-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ORANGEBURG SC
2010-09-27 803-369-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-09-27 803-400-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-09-27 803-400-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-09-10 803-410-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MANNING SC
2010-09-10 803-579-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2010-09-10 803-913-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 HAMPTON SC
2010-09-03 803-358-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 LEXINGTON SC
2010-09-02 803-212-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-09-02 803-580-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BATESBURG SC
2010-08-25 803-818-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 YORK SC
2010-08-11 803-402-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 WINNSBORO SC
2010-08-11 803-497-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-497-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-497-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-569-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-569-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-569-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-569-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-11 803-569-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-08-10 803-607-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NO SUMTER SC
2010-08-10 803-607-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NO SUMTER SC
2010-08-06 803-226-9XXX 9000–9999Assigned IDT AMERICA, CORP. - SC 467E AIKEN SC
2010-08-06 803-810-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CLOVER SC
2010-08-06 803-816-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHPNLTLMTN SC
2010-08-06 803-847-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMTER SC
2010-08-05 803-601-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 CHESTER SC
2010-07-28 803-854-7XXX 7000–7999Assigned SOUTH CAROLINA NET, INC. - SC 1784 SANTEE SC
2010-07-22 803-580-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 BATESBURG SC
2010-07-21 803-807-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2010-07-13 803-639-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2010-07-12 803-474-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NO AUGUSTA SC
2010-07-09 803-363-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA 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.