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
2011-11-30 336-308-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ASHEBORO NC
2011-11-30 336-447-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GIBSONVL NC
2011-11-21 336-481-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J THOMASVL NC
2011-11-21 336-592-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROXBORO NC
2011-11-21 336-933-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J YANCEYVL NC
2011-11-10 336-891-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RUFFIN NC
2011-10-28 336-912-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2011-10-28 336-912-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2011-10-28 336-912-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2011-10-26 336-573-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E STONEVILLE NC
2011-10-18 336-240-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2011-10-17 336-364-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E TIMBERLAKE NC
2011-10-17 336-778-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WINSTN SAL NC
2011-10-11 336-891-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RUFFIN NC
2011-10-03 336-609-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2011-09-19 336-934-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-09-16 336-290-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2011-09-16 336-355-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2011-09-16 336-612-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E EDEN NC
2011-09-16 336-794-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2011-09-14 336-642-1XXX 1000–1999Assigned WINDSTREAM NORTH CAROLINA, INC. 0476 RURAL HALL NC
2011-09-14 336-904-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 KERNERSVL NC
2011-09-14 336-946-8XXX 8000–8999Assigned WINDSTREAM NORTH CAROLINA, INC. 0476 LEWISVILLE NC
2011-09-14 336-985-1XXX 1000–1999Assigned WINDSTREAM NORTH CAROLINA, INC. 0476 KING NC
2011-09-12 336-483-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2011-09-08 336-844-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 NOWILKESBO NC
2011-09-06 336-871-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SANDYRIDGE NC
2011-09-02 336-490-3XXX 3000–3999Assigned WINDSTREAM NORTH CAROLINA, INC. 0476 DENTON NC
2011-09-02 336-815-3XXX 3000–3999Assigned WINDSTREAM NORTH CAROLINA, INC. 0476 OLDTOWN NC
2011-08-25 336-896-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2011-08-15 336-448-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-448-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-486-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-528-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-695-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-757-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-15 336-757-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2011-08-12 336-441-6XXX 6000–6999Assigned NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F SUMMERFLD NC
2011-08-08 336-500-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2011-08-05 336-615-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2011-08-03 336-481-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 THOMASVL NC
2011-07-20 336-739-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SAXAPAHAW NC
2011-07-19 336-298-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2011-07-15 336-256-9XXX 9000–9999Assigned NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F GREENSBORO NC
2011-07-14 336-448-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2011-07-14 336-448-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2011-07-14 336-525-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SAXAPAHAW NC
2011-06-28 336-308-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ASHEBORO NC
2011-06-22 336-912-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2011-06-22 336-912-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO 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.