NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 336
TWC IP ENABLED SERVICES, LLC 231
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
2024-12-12 336-919-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MILTON NC
2023-10-18 336-810-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K TIMBERLAKE NC
2020-02-26 336-748-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2018-10-10 336-779-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2018-06-29 336-942-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2018-06-26 336-539-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2018-06-01 336-296-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K KING NC
2018-05-11 336-637-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K REIDSVILLE NC
2018-04-03 336-843-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON NC
2018-04-03 336-867-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON NC
2018-02-23 336-438-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2018-02-23 336-864-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K EDEN NC
2017-12-13 336-567-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2017-10-24 336-395-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2017-09-25 336-628-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K ASHEBORO NC
2017-07-24 336-894-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2017-07-24 336-894-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2017-06-28 336-901-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GIBSONVL NC
2017-03-27 336-916-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MADISON NC
2016-11-09 336-930-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2016-09-06 336-515-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K KERNERSVL NC
2016-09-06 336-579-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2016-09-06 336-579-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2016-08-05 336-515-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K KERNERSVL NC
2016-06-29 336-843-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON NC
2016-06-23 336-807-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2016-02-18 336-639-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2016-02-16 336-762-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K THOMASVL NC
2015-11-24 336-955-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-11-24 336-955-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-11-24 336-955-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-11-23 336-781-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2015-11-16 336-350-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2015-09-11 336-291-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-09-11 336-542-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-09-11 336-808-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-09-11 336-842-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-09-11 336-895-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-07-21 336-438-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON NC
2015-07-21 336-781-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K HIGH POINT NC
2015-07-21 336-842-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-07-10 336-673-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MOUNT AIRY NC
2015-07-01 336-560-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMMERFLD NC
2015-06-03 336-815-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K OLDTOWN NC
2015-05-18 336-347-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K REIDSVILLE NC
2015-05-18 336-727-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WINSTN SAL NC
2015-04-01 336-897-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-04-01 336-897-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-04-01 336-897-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC
2015-04-01 336-897-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBORO NC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.