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
2009-02-11 336-389-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2009-02-09 336-309-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2009-01-30 336-520-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 REIDSVILLE NC
2009-01-29 336-452-8XXX 8000–8999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2009-01-09 336-291-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-09 336-291-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-09 336-291-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-09 336-323-8XXX 8000–8999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-09 336-338-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-09 336-358-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2009-01-06 336-703-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2009-01-06 336-703-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2009-01-06 336-745-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2009-01-05 336-417-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2008-12-31 336-443-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DOBSON NC
2008-12-08 336-452-9XXX 9000–9999Assigned CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
2008-11-19 336-949-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MADISON NC
2008-11-19 336-949-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MADISON NC
2008-11-14 336-745-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-11-12 336-923-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K OLDTOWN NC
2008-11-10 336-300-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2008-11-10 336-300-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2008-11-07 336-354-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-11-07 336-354-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-11-07 336-394-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2008-11-07 336-394-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2008-11-07 336-831-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-11-06 336-614-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K LEVELCROSS NC
2008-11-06 336-820-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K ZEPHYR NC
2008-10-29 336-298-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SUMMERFLD NC
2008-10-29 336-310-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 KERNERSVL NC
2008-10-29 336-685-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JULIAN NC
2008-10-28 336-284-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K COOLEEMEE NC
2008-10-28 336-351-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K WESTFIELD NC
2008-10-28 336-463-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K COURTNEY NC
2008-10-28 336-488-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K BROOKS NC
2008-10-28 336-492-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K IJAMES NC
2008-10-28 336-699-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K EAST BEND NC
2008-10-28 336-941-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K ADVANCE NC
2008-10-28 336-961-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K FORBUSH NC
2008-10-24 336-270-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2008-10-24 336-289-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E HIGH POINT NC
2008-10-24 336-298-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2008-10-24 336-303-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2008-10-24 336-303-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2008-10-24 336-303-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2008-10-24 336-308-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E ASHEBORO NC
2008-10-24 336-310-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2008-10-24 336-313-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E THOMASVL NC
2008-10-24 336-347-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE 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.