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
2010-07-09 803-363-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-363-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2010-07-09 803-380-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BATH SC
2010-07-09 803-443-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWELLENTN SC
2010-07-08 803-226-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F AIKEN SC
2010-07-08 803-971-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 HOLLY HILL SC
2010-06-18 803-597-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 NEWBERRY SC
2010-06-18 803-724-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2010-06-14 803-944-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 NEWBERRY SC
2010-06-04 803-514-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2010-05-25 803-569-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2010-05-21 803-580-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BATESBURG SC
2010-05-19 803-310-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CAMDEN SC
2010-05-19 803-369-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-05-19 803-369-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-05-19 803-369-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-05-19 803-497-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-05-19 803-542-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-05-19 803-596-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ORANGEBURG SC
2010-05-19 803-947-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NEWBERRY SC
2010-05-10 803-708-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2010-05-10 803-938-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMTER SC
2010-05-04 803-335-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2010-04-08 803-430-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 JOHNSTON SC
2010-03-29 803-832-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2010-03-11 803-569-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2010-03-11 803-569-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2010-03-11 803-569-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2010-03-11 803-596-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ORANGEBURG SC
2010-03-10 803-842-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 HAMPTON SC
2010-03-08 803-335-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2010-03-08 803-577-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 LANCASTER SC
2010-03-08 803-579-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2010-03-08 803-579-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2010-03-08 803-900-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CAMDEN SC
2010-03-04 803-380-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BATH SC
2010-03-04 803-410-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MANNING SC
2010-03-03 803-381-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2010-03-03 803-614-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2010-02-12 803-810-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2010-02-10 803-426-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NO AUGUSTA SC
2010-02-10 803-577-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 LANCASTER SC
2010-02-10 803-577-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 LANCASTER SC
2010-02-10 803-580-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2010-02-10 803-580-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2010-02-10 803-795-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMTER SC
2010-02-10 803-900-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CAMDEN 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.