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
2014-11-06 336-814-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2014-11-06 336-814-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2014-11-05 336-247-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2014-10-30 336-991-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2014-10-27 336-270-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2014-10-27 336-997-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2014-10-20 336-485-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2014-10-20 336-485-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2014-10-10 336-566-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E NOWILKESBO NC
2014-10-10 336-763-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2014-10-10 336-763-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2014-10-08 336-661-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WINSTN SAL NC
2014-10-02 336-814-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2014-10-01 336-814-8XXX 8000–8999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2014-10-01 336-814-9XXX 9000–9999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2014-09-30 336-905-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGH POINT NC
2014-09-29 336-481-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 THOMASVL NC
2014-09-29 336-600-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 OLDTOWN NC
2014-09-15 336-439-4XXX 4000–4999Assigned FRONTIER COMMUNICATIONS OF AMERICA, INC. - NC 440G ROXBORO NC
2014-09-15 336-844-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 NOWILKESBO NC
2014-09-12 336-515-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 KERNERSVL NC
2014-09-11 336-715-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E JULIAN NC
2014-09-11 336-914-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E DANBURY NC
2014-09-05 336-770-2XXX 2000–2999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2014-09-05 336-777-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2014-09-03 336-212-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2014-09-03 336-701-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-09-03 336-701-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-09-03 336-712-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-09-03 336-712-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-08-29 336-590-9XXX 9000–9999Assigned WINDSTREAM LEXCOM COMMUNICATIONS, LLC 0483 LEXINGTON NC
2014-08-27 336-515-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2014-08-21 336-365-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-365-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-365-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-365-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-365-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-365-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-08-21 336-417-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2014-08-21 336-417-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2014-08-21 336-904-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2014-08-20 336-649-2XXX 2000–2999Assigned UNITED STATES CELLULAR - NC 6282 WJEFFERSON NC
2014-08-07 336-934-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-08-07 336-934-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-08-04 336-701-8XXX 8000–8999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2014-07-24 336-467-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2014-07-16 336-814-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2014-07-16 336-938-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2014-07-16 336-938-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2014-07-16 336-938-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO 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.