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 910
LEVEL 3 COMMUNICATIONS, LLC - NC 143
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
2024-05-03 910-393-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SEASIDE NC
2022-11-21 910-637-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ABERDEEN NC
2022-08-12 910-956-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SCOTTSHILL NC
2021-12-02 910-553-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BOLIVIA NC
2021-12-02 910-721-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SHALLOTTE NC
2021-10-25 910-767-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DUNN-CMBLD NC
2019-12-17 910-752-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HOLLYRIDGE NC
2019-03-05 910-573-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 TROY NC
2017-11-07 910-696-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 PINEBLUFF NC
2017-09-29 910-698-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WAGRAM NC
2017-07-18 910-785-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 LUMBERTON NC
2016-03-02 910-500-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2015-10-27 910-218-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2015-09-23 910-550-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2015-08-03 910-218-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2015-07-09 910-376-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JACKSONVL NC
2015-07-09 910-676-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2015-07-09 910-939-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JACKSONVL NC
2015-07-02 910-676-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2014-10-07 910-839-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WRGHTSVBCH NC
2014-09-30 910-660-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2014-09-12 910-973-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2014-05-14 910-535-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAIRMONT NC
2014-05-14 910-607-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 GIBSON NC
2014-05-14 910-668-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 PEMBROKE NC
2014-05-14 910-707-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CAROLINBCH NC
2014-05-14 910-720-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ROWLAND NC
2014-05-14 910-889-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ATKINSON NC
2014-03-13 910-226-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WARSAW NC
2014-03-13 910-430-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RICHLANDS NC
2014-03-13 910-541-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 TOPSAIL IS NC
2014-03-13 910-708-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SWANSBORO NC
2014-03-13 910-741-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SNEADSFRRY NC
2014-02-20 910-444-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2014-01-29 910-974-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CANDOR NC
2014-01-28 910-469-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MT GILEAD NC
2014-01-14 910-758-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2013-09-10 910-802-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 LUMBERTON NC
2013-04-17 910-376-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JACKSONVL NC
2013-03-04 910-885-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ST PAULS NC
2012-08-03 910-444-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2012-08-03 910-556-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 VASS NC
2012-06-04 910-816-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 LUMBERTON NC
2012-02-29 910-550-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2012-01-18 910-853-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
2011-12-13 910-915-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 JACKSONVL NC
2011-12-01 910-363-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 SOUTHPORT NC
2011-11-30 910-416-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 LUMBERTON NC
2011-11-30 910-863-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BLADENBORO NC
2011-10-26 910-604-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CASTLEHAYN 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.