NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2009-05-14 336-740-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-05-14 336-740-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-05-14 336-740-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-05-14 336-740-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-05-14 336-740-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-05-14 336-795-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K LIBERTY-RA NC
2009-05-13 336-497-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 KERNERSVL NC
2009-05-06 336-745-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2009-05-06 336-745-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2009-05-06 336-745-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2009-05-06 336-745-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2009-05-04 336-279-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2009-05-04 336-469-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2009-04-30 336-500-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J GREENSBORO NC
2009-04-30 336-500-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J GREENSBORO NC
2009-04-24 336-862-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2009-04-24 336-862-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2009-04-24 336-862-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2009-04-21 336-564-4XXX 4000–4999Assigned BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 KERNERSVL NC
2009-04-14 336-269-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2009-04-14 336-467-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2009-04-14 336-514-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2009-04-14 336-514-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2009-04-14 336-520-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2009-04-14 336-520-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2009-04-09 336-609-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-04-09 336-609-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-04-09 336-609-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-04-09 336-609-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-04-07 336-298-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMMERFLD NC
2009-04-03 336-612-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K EDEN NC
2009-04-02 336-550-4XXX 4000–4999Assigned NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F GREENSBORO NC
2009-04-02 336-823-3XXX 3000–3999Assigned NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F HIGH POINT NC
2009-04-01 336-537-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SOUTHMONT NC
2009-04-01 336-619-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WELCOME NC
2009-03-27 336-313-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K THOMASVL NC
2009-03-26 336-290-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2009-03-26 336-290-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2009-03-26 336-290-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2009-03-26 336-300-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON NC
2009-03-26 336-300-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON NC
2009-03-18 336-905-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2009-03-13 336-258-8XXX 8000–8999Assigned PIEDMONT COMMUNICATIONS SERVICES, INC. - NC 035B ELKIN NC
2009-03-13 336-444-8XXX 8000–8999Assigned PIEDMONT COMMUNICATIONS SERVICES, INC. - NC 035B PILOT MT NC
2009-03-13 336-648-8XXX 8000–8999Assigned PIEDMONT COMMUNICATIONS SERVICES, INC. - NC 035B MOUNT AIRY NC
2009-03-10 336-459-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 YANCEYVL NC
2009-03-10 336-648-9XXX 9000–9999Assigned UNITED STATES CELLULAR - NC 6282 MOUNT AIRY NC
2009-03-05 336-745-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2009-03-04 336-617-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2009-02-11 336-389-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.