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
2015-04-01 803-878-5XXX 5000–5999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H ORANGEBURG SC
2015-04-01 803-888-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2015-04-01 803-888-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2015-03-26 803-630-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CLOVER SC
2015-03-23 803-510-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NO AUGUSTA SC
2015-03-23 803-575-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHPNLTLMTS SC
2015-03-23 803-599-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NO AUGUSTA SC
2015-03-23 803-620-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2015-03-23 803-620-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2015-03-23 803-638-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-875-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F EASTOVER SC
2015-03-23 803-900-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CAMDEN SC
2015-03-23 803-900-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CAMDEN SC
2015-03-23 803-939-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-939-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-23 803-999-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2015-03-11 803-850-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FAIRFAX SC
2015-03-10 803-757-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMTER SC
2015-03-06 803-888-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E COLUMBIA SC
2015-03-06 803-888-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E COLUMBIA SC
2015-03-06 803-888-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E COLUMBIA SC
2015-03-05 803-626-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2015-03-05 803-752-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKE WYLIE SC
2015-03-05 803-878-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2015-03-04 803-228-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT MILL SC
2015-03-04 803-228-2XXX 2000–2999Assigned METROPCS, INC. 5562 FORT MILL SC
2015-03-02 803-490-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEXINGTON SC
2015-03-02 803-638-9XXX 9000–9999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-03-02 803-729-1XXX 1000–1999Assigned METROPCS, INC. 5562 CAMDEN SC
2015-03-02 803-806-2XXX 2000–2999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-03-02 803-888-0XXX 0000–0999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-03-02 803-888-9XXX 9000–9999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-03-02 803-900-2XXX 2000–2999Assigned METROPCS, INC. 5562 CAMDEN SC
2015-03-02 803-999-0XXX 0000–0999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-03-02 803-999-8XXX 8000–8999Assigned METROPCS, INC. 5562 COLUMBIA SC
2015-02-26 803-559-2XXX 2000–2999Assigned IDT AMERICA, CORP. - SC 467E WAGENER SC
2015-02-24 803-851-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2015-02-24 803-851-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2015-02-23 803-971-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HOLLY HILL SC
2015-02-18 803-618-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 JOHNSTON SC
2015-02-18 803-672-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENMARK SC
2015-02-11 803-504-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2015-02-11 803-504-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2015-02-10 803-621-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2015-02-10 803-621-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL 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.