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
2010-03-03 336-618-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-03-02 336-464-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2010-02-26 336-417-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2010-02-26 336-905-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2010-02-18 336-546-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C WINSTN SAL NC
2010-02-18 336-755-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MOUNT AIRY NC
2010-02-16 336-891-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E RUFFIN NC
2010-02-10 336-268-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-02-10 336-268-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-02-10 336-341-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-02-10 336-823-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2010-02-04 336-459-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2010-02-04 336-459-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 YANCEYVL NC
2010-02-04 336-520-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2010-02-04 336-520-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2010-02-04 336-520-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
2010-02-02 336-308-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ASHEBORO NC
2010-02-02 336-505-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KIMESVILLE NC
2010-02-02 336-525-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SAXAPAHAW NC
2010-02-02 336-612-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E EDEN NC
2010-01-27 336-298-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2010-01-27 336-310-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2010-01-27 336-347-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE NC
2010-01-11 336-341-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-01-11 336-341-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2010-01-11 336-465-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
2010-01-11 336-479-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2010-01-11 336-479-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2010-01-11 336-479-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2010-01-11 336-482-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-01-11 336-482-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-01-11 336-482-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-01-11 336-482-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-01-11 336-482-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2010-01-11 336-534-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2010-01-11 336-534-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2010-01-11 336-823-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2010-01-11 336-823-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2010-01-11 336-823-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2009-12-28 336-542-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-28 336-550-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2009-12-10 336-479-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON 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.