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
2014-06-26 336-234-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MILTON NC
2014-06-26 336-388-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GATEWOOD NC
2014-06-20 336-872-1XXX 1000–1999Assigned RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC 757D SEAGROVE NC
2014-06-13 336-523-1XXX 1000–1999Assigned RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC 757D ASHEBORO NC
2014-06-06 336-477-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MOCKSVILLE NC
2014-06-05 336-850-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MONTICELLO NC
2014-05-30 336-355-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-355-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-355-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-365-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-365-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-365-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-05-30 336-701-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-30 336-701-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-30 336-701-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-30 336-701-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-30 336-701-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-30 336-701-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-05-27 336-628-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 ASHEBORO NC
2014-05-20 336-467-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BROOKS NC
2014-05-20 336-705-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2014-05-16 336-561-5XXX 5000–5999Assigned METROPCS, INC. 5562 THOMASVL NC
2014-05-15 336-948-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E PROSPECTHL NC
2014-05-08 336-281-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E QUAKER GAP NC
2014-05-08 336-485-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2014-05-08 336-536-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WALNUTCOVE NC
2014-05-08 336-738-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E ANDERSON NC
2014-05-08 336-933-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E YANCEYVL NC
2014-05-02 336-901-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GIBSONVL NC
2014-04-29 336-494-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2014-04-29 336-494-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2014-04-29 336-494-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E BURLINGTON NC
2014-04-29 336-652-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KIMESVILLE NC
2014-04-29 336-739-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SAXAPAHAW NC
2014-04-25 336-663-0XXX 0000–0999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F GREENSBORO NC
2014-04-25 336-663-6XXX 6000–6999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F GREENSBORO NC
2014-04-25 336-663-9XXX 9000–9999Assigned PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F GREENSBORO NC
2014-04-16 336-904-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E KERNERSVL NC
2014-04-10 336-728-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WINSTN SAL NC
2014-04-03 336-606-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SANDYRIDGE NC
2014-04-03 336-915-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ROXBORO NC
2014-04-03 336-916-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MADISON NC
2014-03-28 336-281-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 QUAKER GAP NC
2014-03-28 336-390-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 TIMBERLAKE NC
2014-03-28 336-536-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WALNUTCOVE NC
2014-03-28 336-562-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 PROSPECTHL NC
2014-03-28 336-717-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 STONEVILLE NC
2014-03-28 336-738-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ANDERSON NC
2014-03-28 336-754-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WALKERTOWN NC
2014-03-28 336-872-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SEAGROVE 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.