NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2005-07-14 336-688-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2005-07-08 336-410-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2005-07-08 336-410-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2005-07-08 336-437-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2005-07-08 336-437-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2005-06-27 336-638-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2005-06-17 336-266-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2005-06-17 336-306-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-06-17 336-306-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-06-17 336-306-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-06-17 336-480-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-06-17 336-596-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2005-06-17 336-596-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2005-06-17 336-688-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2005-06-13 336-512-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2005-06-09 336-566-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 NOWILKESBO NC
2005-06-08 336-638-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2005-05-23 336-480-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-05-23 336-480-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-05-20 336-354-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2005-05-20 336-354-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2005-05-19 336-714-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WINSTN SAL NC
2005-05-18 336-799-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 RANDLEMAN NC
2005-05-17 336-473-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-05-17 336-473-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-05-17 336-473-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-05-06 336-589-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 EDEN NC
2005-05-05 336-410-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2005-05-04 336-754-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WALKERTOWN NC
2005-05-04 336-778-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WINSTN SAL NC
2005-05-04 336-778-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WINSTN SAL NC
2005-05-04 336-793-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2005-05-04 336-793-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2005-05-02 336-289-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 HIGH POINT NC
2005-05-02 336-313-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 THOMASVL NC
2005-04-20 336-313-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 THOMASVL NC
2005-04-20 336-444-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 PILOT MT NC
2005-04-20 336-551-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 BOONVILLE NC
2005-04-20 336-949-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 MADISON NC
2005-04-19 336-480-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-04-19 336-518-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 YADKINVL NC
2005-04-19 336-698-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2005-04-19 336-698-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2005-04-19 336-790-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2005-04-19 336-790-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2005-04-07 336-429-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MOUNT AIRY NC
2005-04-06 336-258-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 ELKIN NC
2005-04-06 336-429-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 MOUNT AIRY NC
2005-04-06 336-443-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DOBSON NC
2005-04-06 336-573-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 STONEVILLE NC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.