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
2008-06-26 336-905-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2008-06-26 336-905-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2008-06-17 336-501-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-06-17 336-501-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-06-17 336-501-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-06-11 336-310-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K KERNERSVL NC
2008-06-02 336-397-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2008-05-29 336-818-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NOWILKESBO NC
2008-05-28 336-769-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2008-05-27 336-347-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K REIDSVILLE NC
2008-05-27 336-617-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2008-05-27 336-617-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2008-05-27 336-736-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K ASHEBORO NC
2008-05-19 336-937-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2008-05-09 336-354-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2008-05-09 336-455-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2008-05-08 336-233-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E JULIAN NC
2008-05-08 336-644-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E SUMMERFLD NC
2008-05-08 336-833-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2008-05-06 336-899-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGH POINT NC
2008-05-06 336-899-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGH POINT NC
2008-04-16 336-394-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2008-04-16 336-525-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SAXAPAHAW NC
2008-04-15 336-441-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SUMMERFLD NC
2008-04-14 336-245-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2008-04-14 336-270-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2008-04-14 336-270-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2008-04-14 336-389-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2008-03-19 336-944-0XXX 0000–0999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2008-03-17 336-990-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOWILKESBO NC
2008-03-17 336-990-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOWILKESBO NC
2008-03-14 336-608-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2008-03-14 336-802-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGH POINT NC
2008-03-13 336-501-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2008-03-04 336-554-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-03-04 336-554-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-03-04 336-905-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2008-03-04 336-905-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2008-03-03 336-566-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 NOWILKESBO NC
2008-02-29 336-350-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2008-02-29 336-350-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2008-02-21 336-251-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-02-21 336-455-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-02-21 336-455-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2008-02-21 336-829-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-02-21 336-829-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2008-02-20 336-514-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2008-02-19 336-831-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2008-02-15 336-269-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2008-02-13 336-300-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON 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.