NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 336
HD CARRIER LLC 3
ONVOY, LLC - NC 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
2008-02-13 336-566-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 NOWILKESBO NC
2008-02-08 336-285-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2008-02-08 336-285-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2008-02-08 336-343-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2008-02-07 336-862-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2008-01-30 336-307-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2008-01-29 336-639-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2008-01-29 336-639-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2008-01-28 336-479-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2008-01-22 336-939-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RUFFIN NC
2008-01-17 336-756-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2008-01-17 336-756-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2008-01-09 336-964-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
2008-01-03 336-833-1XXX 1000–1999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2007-12-21 336-452-1XXX 1000–1999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2007-12-21 336-452-2XXX 2000–2999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2007-12-21 336-452-3XXX 3000–3999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2007-12-21 336-452-4XXX 4000–4999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2007-11-28 336-200-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROARINGGAP NC
2007-11-19 336-245-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-11-19 336-268-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-11-19 336-602-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2007-11-19 336-602-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2007-11-12 336-880-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2007-11-05 336-791-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2007-10-30 336-740-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-10-30 336-776-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-10-29 336-529-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2007-10-17 336-469-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2007-10-16 336-218-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-10-16 336-245-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-10-09 336-602-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2007-10-09 336-602-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2007-10-02 336-529-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2007-09-28 336-469-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2007-09-26 336-793-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-09-17 336-285-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2007-09-17 336-285-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2007-09-17 336-790-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-09-17 336-793-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-09-05 336-791-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 REIDSVILLE NC
2007-08-29 336-773-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2007-08-29 336-790-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-08-29 336-790-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2007-08-24 336-308-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ASHEBORO NC
2007-08-22 336-501-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2007-08-22 336-529-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2007-08-17 336-394-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2007-08-13 336-612-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 EDEN NC
2007-08-09 336-331-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC

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.