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
2020-09-08 336-616-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE NC
2020-09-02 336-962-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2020-09-02 336-962-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2020-09-02 336-962-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2020-08-19 336-230-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2020-08-19 336-230-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2020-08-19 336-230-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2020-08-19 336-230-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2020-08-19 336-230-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2020-08-19 336-551-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BOONVILLE NC
2020-08-17 336-343-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2020-08-17 336-488-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2020-08-17 336-488-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2020-08-10 336-640-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTA NC
2020-08-10 336-738-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDERSON NC
2020-08-06 336-990-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOWILKESBO NC
2020-08-06 336-990-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOWILKESBO NC
2020-08-05 336-646-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-08-05 336-660-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-08-05 336-780-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2020-08-05 336-780-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2020-08-05 336-780-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2020-08-05 336-805-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-08-05 336-860-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-08-05 336-890-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-08-05 336-890-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2020-07-28 336-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H OLDTOWN NC
2020-07-22 336-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H CHAMPION NC
2020-07-22 336-703-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2020-07-22 336-779-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2020-07-13 336-815-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 OLDTOWN NC
2020-07-09 336-290-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2020-07-02 336-815-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E OLDTOWN NC
2020-07-02 336-815-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E OLDTOWN NC
2020-06-24 336-943-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2020-06-24 336-943-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2020-06-24 336-943-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2020-06-24 336-943-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2020-06-17 336-569-2XXX 2000–2999Assigned ONVOY, LLC - NC 638E DOBSON NC
2020-06-17 336-569-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E DOBSON NC
2020-06-17 336-943-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 HIGH POINT NC
2020-06-12 336-866-1XXX 1000–1999Assigned METROPCS, INC. 5562 LEWISVILLE NC
2020-05-28 336-967-5XXX 5000–5999Assigned SOUTH CAROLINA NET, INC. - NC 511C KERNERSVL NC
2020-05-14 336-360-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E RAMSEUR NC
2020-05-14 336-360-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E RAMSEUR NC
2020-05-14 336-444-9XXX 9000–9999Assigned ONVOY, LLC - NC 638E PILOT MT NC
2020-05-14 336-594-2XXX 2000–2999Assigned ONVOY, LLC - NC 638E STANLEYVL NC
2020-05-14 336-594-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E STANLEYVL NC
2020-05-14 336-649-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E WJEFFERSON NC
2020-05-14 336-649-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E WJEFFERSON 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.