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 470
LEVEL 3 COMMUNICATIONS, LLC - GA 154
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
2024-10-11 470-887-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 CONCORD GA
2022-06-17 470-964-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-22 470-945-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-22 470-945-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-22 470-945-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-22 470-945-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-22 470-945-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-05 470-945-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-04-05 470-945-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-03-28 470-947-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-03-28 470-947-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2022-03-28 470-947-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2021-11-18 470-903-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2021-11-05 470-874-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 BREMEN GA
2020-01-14 470-870-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2020-01-14 470-870-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-10-10 470-592-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 BARNESVL GA
2019-10-09 470-758-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 CUMMING GA
2019-09-03 470-622-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-07-30 470-437-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-07-30 470-437-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-07-30 470-621-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-05-30 470-508-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-05-30 470-508-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-04-16 470-463-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-463-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-16 470-666-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NW GA
2019-04-05 470-480-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-05 470-602-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-04-05 470-602-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-03-27 470-602-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2019-03-20 470-785-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NW GA
2019-02-21 470-480-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-01-23 470-938-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NW GA
2019-01-22 470-900-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 WINDER GA
2019-01-15 470-880-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2018-12-12 470-863-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 CANTON GA
2018-10-31 470-822-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 BUFORD GA
2018-07-09 470-403-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2018-04-10 470-880-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA
2018-03-27 470-386-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2018-03-26 470-880-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NE GA

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.