NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 662
LEVEL 3 COMMUNICATIONS, LLC - MS 139
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2024-11-22 662-939-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 OLIVE BRCH MS
2024-01-26 662-800-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BRUCE MS
2022-12-19 662-714-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 WATER VLY MS
2022-07-26 662-600-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 CALHOUN CY MS
2021-11-18 662-853-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 SMITHVILLE MS
2021-02-12 662-431-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GUNTOWN MS
2020-11-25 662-405-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MANTACHIE MS
2020-11-25 662-409-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 FULTON MS
2020-11-25 662-421-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TREMONT MS
2020-11-12 662-784-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 FAIRVIEW MS
2018-06-18 662-644-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GREENWOOD MS
2018-04-09 662-782-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 OLIVE BRCH MS
2017-10-24 662-438-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TISHOMINGO MS
2017-08-22 662-346-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TUPELO MS
2017-06-13 662-297-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PONTOTOC MS
2016-08-24 662-362-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 ABERDEEN MS
2016-06-22 662-371-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 OXFORD MS
2015-03-31 662-755-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 YAZOO CITY MS
2015-02-25 662-913-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MEMPHIS MS
2014-12-09 662-638-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 OXFORD MS
2014-04-07 662-850-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BYHALIA MS
2014-04-04 662-300-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 CHULAHOMA MS
2014-04-04 662-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 YELLOW CRK MS
2014-04-04 662-768-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MICHIGANCY MS
2014-03-07 662-358-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 JONESTOWN MS
2014-03-07 662-427-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BURNSVILLE MS
2014-03-07 662-479-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BELMONT MS
2014-03-07 662-674-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 ETHEL MS
2014-03-07 662-677-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 WALNUT MS
2014-03-07 662-685-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BLUE MT MS
2014-03-06 662-547-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MCCOOL MS
2014-03-06 662-604-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 SARDIS MS
2014-03-06 662-894-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 LULA MS
2014-03-05 662-967-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 WEST MS
2013-12-18 662-269-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TUPELO MS
2012-04-27 662-520-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GRENADA MS
2012-04-10 662-532-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 YAZOO CITY MS
2011-10-31 662-581-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GREENWOOD MS
2011-10-04 662-360-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BATESVILLE MS
2011-10-04 662-430-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GREENVILLE MS
2011-10-04 662-635-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 INDIANOLA MS
2011-08-08 662-985-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MEMPHIS MS
2011-06-27 662-440-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 VAIDEN MS
2011-06-24 662-330-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 KILMICHAEL MS
2011-06-24 662-731-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 DUCK HILL MS
2011-06-24 662-757-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TUTWILER MS
2011-06-21 662-450-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 LEXINGTON MS
2011-06-21 662-625-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 CHARLESTON MS
2011-03-16 662-649-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 DREW MS
2011-03-15 662-763-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 YAZOO CITY MS

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.