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
2004-11-15 336-671-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2004-11-15 336-671-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2004-11-12 336-471-2XXX 2000–2999Assigned METROPCS, INC. 5562 HIGH POINT NC
2004-11-12 336-506-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURLINGTON NC
2004-11-12 336-596-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2004-11-10 336-409-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-10-25 336-868-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-25 336-868-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-10-19 336-437-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2004-10-19 336-505-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 KIMESVILLE NC
2004-10-18 336-491-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2004-10-15 336-295-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MONTICELLO NC
2004-10-15 336-376-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SAXAPAHAW NC
2004-10-15 336-685-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JULIAN NC
2004-10-15 336-939-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 RUFFIN NC
2004-10-13 336-264-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2004-10-13 336-406-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-10-13 336-409-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-09-15 336-409-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-09-14 336-376-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 SAXAPAHAW NC
2004-09-14 336-685-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 JULIAN NC
2004-09-08 336-425-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2004-08-24 336-790-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2004-08-24 336-793-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2004-08-17 336-201-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WINSTN SAL NC
2004-08-17 336-261-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 BURLINGTON NC
2004-08-17 336-638-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2004-08-16 336-516-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2004-08-10 336-264-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2004-08-10 336-409-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-07-21 336-409-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2004-07-20 336-264-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2004-07-19 336-295-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MONTICELLO NC
2004-07-19 336-298-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SUMMERFLD NC
2004-07-19 336-329-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURLINGTON NC
2004-07-19 336-653-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2004-07-14 336-603-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GIBSONVL NC
2004-07-13 336-617-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 GREENSBORO NC
2004-07-12 336-295-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 MONTICELLO NC
2004-07-12 336-310-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 KERNERSVL NC
2004-07-02 336-423-7XXX 7000–7999Assigned METROPCS, INC. 5562 KERNERSVL NC
2004-06-21 336-426-0XXX 0000–0999Assigned CAROLINA WEST WIRELESS, INC. 5932 ELKIN 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.