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
2006-12-19 336-635-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 EDEN NC
2006-12-12 336-985-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K KING NC
2006-12-08 336-258-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELKIN NC
2006-12-02 336-223-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURLINGTON NC
2006-12-02 336-270-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURLINGTON NC
2006-12-01 336-792-8XXX 8000–8999Assigned METROPCS, INC. 5562 BURLINGTON NC
2006-11-28 336-460-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2006-11-14 336-380-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2006-11-09 336-455-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2006-11-09 336-455-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2006-10-27 336-529-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2006-10-26 336-343-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2006-10-26 336-343-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 BURLINGTON NC
2006-10-20 336-309-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2006-10-17 336-756-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2006-10-16 336-899-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J HIGH POINT NC
2006-10-16 336-970-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2006-10-13 336-245-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2006-10-13 336-970-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 WINSTN SAL NC
2006-10-13 336-970-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 WINSTN SAL NC
2006-10-13 336-990-0XXX 0000–0999Assigned WILKES COMMUNICATIONS, INC. - NC 795D NOWILKESBO NC
2006-10-11 336-307-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2006-10-05 336-783-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 MOUNT AIRY NC
2006-10-03 336-837-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2006-10-03 336-837-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2006-10-02 336-425-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2006-10-02 336-693-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2006-10-02 336-693-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2006-09-29 336-642-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K RURAL HALL NC
2006-09-25 336-447-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GIBSONVL NC
2006-09-25 336-497-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K KERNERSVL NC
2006-09-22 336-737-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K RAMSEUR NC
2006-09-20 336-831-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2006-09-20 336-831-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2006-09-20 336-831-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2006-09-15 336-936-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MOCKSVILLE NC
2006-09-14 336-301-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
2006-09-14 336-404-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2006-09-12 336-775-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2006-09-12 336-775-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2006-09-11 336-233-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K JULIAN NC
2006-09-11 336-270-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2006-09-11 336-270-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2006-09-11 336-293-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2006-09-11 336-293-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2006-09-11 336-293-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2006-09-11 336-295-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MONTICELLO NC
2006-09-11 336-298-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMMERFLD NC
2006-09-11 336-306-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2006-09-11 336-307-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT 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.