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
2016-06-21 336-807-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2016-06-15 336-914-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DANBURY NC
2016-06-14 336-506-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2016-06-13 336-920-0XXX 0000–0999Assigned METROPCS, INC. 5562 WALKERTOWN NC
2016-06-02 336-867-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 LEXINGTON NC
2016-05-26 336-690-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C GREENSBORO NC
2016-05-17 336-930-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WINSTN SAL NC
2016-05-09 336-396-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E RUFFIN NC
2016-05-09 336-396-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E RUFFIN NC
2016-05-09 336-494-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2016-05-09 336-690-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2016-05-09 336-690-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2016-05-09 336-690-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2016-04-21 336-762-1XXX 1000–1999Assigned METROPCS, INC. 5562 THOMASVL NC
2016-04-18 336-989-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 HIGH POINT NC
2016-03-30 336-652-8XXX 8000–8999Assigned ONVOY, LLC - NC 638E KIMESVILLE NC
2016-03-30 336-715-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E JULIAN NC
2016-03-30 336-715-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E JULIAN NC
2016-03-30 336-850-2XXX 2000–2999Assigned ONVOY, LLC - NC 638E MONTICELLO NC
2016-03-30 336-850-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E MONTICELLO NC
2016-03-30 336-930-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2016-03-30 336-930-9XXX 9000–9999Assigned ONVOY, LLC - NC 638E WINSTN SAL NC
2016-03-29 336-579-0XXX 0000–0999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2016-03-29 336-579-2XXX 2000–2999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2016-03-29 336-579-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2016-03-29 336-930-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2016-03-29 336-930-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2016-03-29 336-930-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2016-03-21 336-930-8XXX 8000–8999Assigned SOUTH CAROLINA NET, INC. - NC 511C WINSTN SAL NC
2016-03-18 336-516-9XXX 9000–9999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F BURLINGTON NC
2016-03-18 336-534-2XXX 2000–2999Assigned SOUTH CAROLINA NET, INC. - NC 511C BURLINGTON NC
2016-03-18 336-579-5XXX 5000–5999Assigned SOUTH CAROLINA NET, INC. - NC 511C GREENSBORO NC
2016-03-18 336-781-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2016-03-17 336-690-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2016-03-16 336-742-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E ANDERSON NC
2016-03-16 336-742-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E ANDERSON NC
2016-03-16 336-850-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E MONTICELLO NC
2016-03-16 336-850-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E MONTICELLO NC
2016-03-08 336-571-1XXX 1000–1999Assigned RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC 769H ELKIN NC
2016-03-08 336-660-1XXX 1000–1999Assigned RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC 769H GREENSBORO NC
2016-03-07 336-308-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 ASHEBORO NC
2016-03-07 336-395-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2016-03-07 336-590-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2016-03-07 336-590-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2016-03-03 336-579-1XXX 1000–1999Assigned SOUTH CAROLINA NET, INC. - NC 511C GREENSBORO NC
2016-03-03 336-585-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C BURLINGTON NC
2016-02-24 336-466-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2016-02-24 336-781-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGH POINT NC
2016-02-18 336-276-4XXX 4000–4999Assigned METROPCS, INC. 5562 WINSTN SAL NC
2016-02-18 336-276-5XXX 5000–5999Assigned METROPCS, INC. 5562 WINSTN SAL 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.