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
2019-11-18 336-228-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E BURLINGTON NC
2019-11-18 336-228-5XXX 5000–5999Assigned ONVOY, LLC - NC 638E BURLINGTON NC
2019-11-12 336-642-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E RURAL HALL NC
2019-11-11 336-343-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2019-10-21 336-860-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2019-10-21 336-860-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E GREENSBORO NC
2019-10-08 336-920-5XXX 5000–5999Assigned METROPCS, INC. 5562 WALKERTOWN NC
2019-10-03 336-726-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2019-10-03 336-761-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2019-09-25 336-514-4XXX 4000–4999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F YANCEYVL NC
2019-09-25 336-936-7XXX 7000–7999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F MOCKSVILLE NC
2019-09-24 336-444-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E PILOT MT NC
2019-09-18 336-747-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2019-09-18 336-979-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2019-09-18 336-979-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2019-09-18 336-979-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2019-08-30 336-860-2XXX 2000–2999Assigned SOUTH CAROLINA NET, INC. - NC 511C GREENSBORO NC
2019-08-26 336-941-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ADVANCE NC
2019-08-26 336-941-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ADVANCE NC
2019-08-22 336-594-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 STANLEYVL NC
2019-08-16 336-967-3XXX 3000–3999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F KERNERSVL NC
2019-08-13 336-979-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2019-08-08 336-642-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 RURAL HALL NC
2019-08-07 336-690-4XXX 4000–4999Assigned METROPCS, INC. 5562 GREENSBORO NC
2019-07-31 336-488-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2019-07-31 336-646-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2019-07-31 336-840-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2019-07-31 336-860-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2019-07-16 336-467-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2019-07-16 336-974-1XXX 1000–1999Assigned TELNYX LLC 073H RUFFIN NC
2019-07-12 336-647-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROXBORO NC
2019-07-01 336-673-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MOUNT AIRY NC
2019-06-24 336-974-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E RUFFIN NC
2019-06-10 336-530-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E ELKIN NC
2019-06-07 336-780-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2019-06-07 336-780-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LEXINGTON NC
2019-06-03 336-979-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2019-05-30 336-502-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E HAYS NC
2019-05-21 336-565-5XXX 5000–5999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F KIMESVILLE NC
2019-05-21 336-967-2XXX 2000–2999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F KERNERSVL NC
2019-05-10 336-343-6XXX 6000–6999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F BURLINGTON NC
2019-05-10 336-939-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E RUFFIN NC
2019-05-10 336-979-1XXX 1000–1999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F WINSTN SAL NC
2019-05-09 336-565-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KIMESVILLE NC
2019-05-09 336-565-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KIMESVILLE NC
2019-05-07 336-943-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2019-05-02 336-916-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 MADISON NC
2019-04-25 336-780-7XXX 7000–7999Assigned ONVOY, LLC - NC 638E LEXINGTON NC
2019-04-23 336-518-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E YADKINVL NC
2019-04-23 336-815-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E OLDTOWN 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.