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
2010-09-02 336-949-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MADISON NC
2010-08-30 336-546-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2010-08-30 336-546-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2010-08-30 336-546-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2010-08-30 336-546-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2010-08-19 336-521-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2010-08-19 336-521-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2010-08-17 336-310-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2010-08-17 336-447-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GIBSONVL NC
2010-08-17 336-496-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE NC
2010-08-10 336-309-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2010-08-10 336-483-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
2010-08-10 336-500-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-08-10 336-618-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-08-10 336-618-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-07-26 336-588-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2010-07-14 336-546-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WINSTN SAL NC
2010-07-12 336-450-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-12 336-450-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-12 336-450-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-09 336-258-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ELKIN NC
2010-07-08 336-695-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-08 336-695-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-08 336-695-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-08 336-695-9XXX 9000–9999Assigned METROPCS, INC. 5562 WINSTN SAL NC
2010-07-06 336-415-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2010-07-06 336-415-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2010-07-06 336-419-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-419-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-419-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-419-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-419-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-458-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-458-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-458-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2010-07-06 336-564-7XXX 7000–7999Assigned METROPCS, INC. 5562 KERNERSVL NC
2010-07-06 336-564-8XXX 8000–8999Assigned METROPCS, INC. 5562 KERNERSVL NC
2010-07-01 336-422-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-01 336-422-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-01 336-422-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-01 336-422-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-01 336-486-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-07-01 336-618-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-06-23 336-252-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2010-06-18 336-481-1XXX 1000–1999Assigned NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 THOMASVL NC
2010-06-18 336-481-2XXX 2000–2999Assigned NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 THOMASVL NC
2010-06-18 336-481-3XXX 3000–3999Assigned NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 THOMASVL NC
2010-06-18 336-481-4XXX 4000–4999Assigned NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 THOMASVL NC
2010-06-18 336-481-8XXX 8000–8999Assigned NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 THOMASVL NC
2010-06-16 336-422-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 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.