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
2014-03-28 336-914-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DANBURY NC
2014-03-21 336-265-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C GREENSBORO NC
2014-03-21 336-701-4XXX 4000–4999Assigned FRONTIER COMMUNICATIONS OF AMERICA, INC. - NC 440G WINSTN SAL NC
2014-03-21 336-875-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J HIGH POINT NC
2014-03-20 336-829-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2014-03-14 336-717-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E STONEVILLE NC
2014-03-11 336-582-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2014-03-11 336-582-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2014-03-11 336-934-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2014-03-11 336-934-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2014-03-07 336-875-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 HIGH POINT NC
2014-03-06 336-395-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2014-03-04 336-265-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-03-04 336-265-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-03-04 336-265-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-03-04 336-265-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-03-04 336-265-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E GREENSBORO NC
2014-03-04 336-521-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-521-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-864-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E EDEN NC
2014-03-04 336-893-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-03-04 336-893-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-03-04 336-929-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-929-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-929-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-929-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-929-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-929-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2014-03-04 336-934-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-03-04 336-934-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WINSTN SAL NC
2014-02-28 336-300-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2014-02-28 336-871-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANDYRIDGE NC
2014-02-25 336-875-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2014-02-20 336-583-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E ROXBORO NC
2014-02-20 336-756-6XXX 6000–6999Assigned UNITED STATES CELLULAR - NC 6282 MOUNT AIRY NC
2014-02-20 336-850-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MONTICELLO NC
2014-02-20 336-891-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E RUFFIN NC
2014-02-12 336-496-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE NC
2014-02-12 336-496-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E REIDSVILLE NC
2014-02-12 336-754-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E WALKERTOWN NC
2014-02-12 336-949-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E MADISON NC
2014-02-11 336-691-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GREENSBORO NC
2014-02-07 336-850-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTICELLO NC
2014-01-30 336-485-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SUMMERFLD NC
2014-01-30 336-489-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WJEFFERSON NC
2014-01-30 336-518-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YADKINVL NC
2014-01-30 336-536-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WALNUTCOVE NC
2014-01-30 336-582-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINSTN SAL NC
2014-01-30 336-933-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YANCEYVL NC
2014-01-29 336-200-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ROARINGGAP 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.