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
2004-06-21 336-426-1XXX 1000–1999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-21 336-426-3XXX 3000–3999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-21 336-426-4XXX 4000–4999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-21 336-426-5XXX 5000–5999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-21 336-426-6XXX 6000–6999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-21 336-426-7XXX 7000–7999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-06-10 336-232-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-06-10 336-293-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 WINSTN SAL NC
2004-06-09 336-518-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 YADKINVL NC
2004-06-08 336-406-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-06-07 336-429-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2004-06-07 336-441-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SUMMERFLD NC
2004-06-07 336-755-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2004-06-07 336-755-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2004-06-04 336-429-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2004-06-04 336-429-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2004-06-01 336-589-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 EDEN NC
2004-05-28 336-512-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2004-05-07 336-406-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-04-22 336-755-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2004-04-22 336-755-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2004-04-21 336-491-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2004-04-16 336-406-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-04-16 336-596-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2004-04-14 336-426-2XXX 2000–2999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN NC
2004-04-07 336-589-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 EDEN NC
2004-04-07 336-589-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 EDEN NC
2004-04-05 336-289-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 HIGH POINT NC
2004-03-16 336-258-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ELKIN NC
2004-03-16 336-258-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ELKIN NC
2004-03-16 336-258-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ELKIN NC
2004-03-16 336-258-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J ELKIN NC
2004-03-08 336-266-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2004-03-08 336-406-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-03-03 336-497-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J KERNERSVL NC
2004-02-26 336-280-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 REIDSVILLE NC
2004-02-26 336-298-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 SUMMERFLD NC
2004-02-25 336-437-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2004-02-24 336-596-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2004-02-17 336-653-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2004-02-17 336-653-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2004-01-29 336-200-3XXX 3000–3999Assigned UNITED STATES CELLULAR - NC 6282 ROARINGGAP NC
2004-01-29 336-200-4XXX 4000–4999Assigned UNITED STATES CELLULAR - NC 6282 ROARINGGAP NC
2004-01-12 336-423-8XXX 8000–8999Assigned METROPCS, INC. 5562 KERNERSVL NC
2004-01-04 336-755-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2004-01-04 336-755-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2003-12-09 336-775-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WINSTN SAL NC
2003-11-24 336-266-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2003-11-11 336-491-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2003-11-04 336-512-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON 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.