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
2010-06-08 336-341-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-06-08 336-341-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-06-08 336-341-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-06-08 336-944-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-06-03 336-637-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2010-06-03 336-637-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2010-05-19 336-588-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2010-05-14 336-223-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2010-05-14 336-592-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E ROXBORO NC
2010-05-14 336-734-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2010-05-14 336-747-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2010-05-14 336-754-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WALKERTOWN NC
2010-05-14 336-777-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2010-05-14 336-937-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2010-05-14 336-937-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2010-05-14 336-937-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2010-05-14 336-937-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2010-05-14 336-949-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MADISON NC
2010-05-03 336-459-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2010-05-03 336-459-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2010-05-03 336-631-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WINSTN SAL NC
2010-04-21 336-770-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2010-04-12 336-588-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2010-04-08 336-618-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-04-08 336-858-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2010-03-31 336-559-2XXX 2000–2999Assigned BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 ELKIN NC
2010-03-30 336-223-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2010-03-30 336-252-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2010-03-30 336-295-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MONTICELLO NC
2010-03-30 336-370-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C GREENSBORO NC
2010-03-30 336-441-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C SUMMERFLD NC
2010-03-30 336-505-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C KIMESVILLE NC
2010-03-30 336-524-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C BURLINGTON NC
2010-03-30 336-525-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SAXAPAHAW NC
2010-03-30 336-637-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C REIDSVILLE NC
2010-03-22 336-313-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 THOMASVL NC
2010-03-22 336-486-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-03-22 336-528-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2010-03-22 336-561-0XXX 0000–0999Assigned METROPCS, INC. 5562 THOMASVL NC
2010-03-22 336-561-4XXX 4000–4999Assigned METROPCS, INC. 5562 THOMASVL NC
2010-03-22 336-566-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 NOWILKESBO NC
2010-03-22 336-566-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 NOWILKESBO NC
2010-03-22 336-858-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2010-03-22 336-858-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2010-03-22 336-862-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2010-03-18 336-464-8XXX 8000–8999Assigned NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F WINSTN SAL NC
2010-03-03 336-465-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
2010-03-03 336-500-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-03-03 336-524-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2010-03-03 336-618-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 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.