NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 712
AIRUS, INC - IA 21
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
2025-04-11 712-217-9XXX 9000–9999Assigned AIRUS, INC - IA 423H CARTERLAKE IA
2025-04-11 712-670-2XXX 2000–2999Assigned AIRUS, INC - IA 423H SIOUX CITY IA
2023-04-03 712-308-9XXX 9000–9999Assigned AIRUS, INC - IA 423H COUNCILBLF IA
2021-09-29 712-409-2XXX 2000–2999Assigned AIRUS, INC - IA 423H SILVERCITY IA
2021-09-29 712-517-3XXX 3000–3999Assigned AIRUS, INC - IA 423H RED OAK IA
2021-01-29 712-250-9XXX 9000–9999Assigned AIRUS, INC - IA 423H ATLANTIC IA
2021-01-29 712-634-9XXX 9000–9999Assigned AIRUS, INC - IA 423H CARROLL IA
2020-06-26 712-524-1XXX 1000–1999Assigned AIRUS, INC - IA 423H COUNCILBLF IA
2019-10-29 712-317-1XXX 1000–1999Assigned AIRUS, INC - IA 423H SIOUX CITY IA
2019-10-22 712-543-1XXX 1000–1999Assigned AIRUS, INC - IA 423H UNDERWOOD IA
2019-04-30 712-517-1XXX 1000–1999Assigned AIRUS, INC - IA 423H RED OAK IA
2019-04-30 712-772-1XXX 1000–1999Assigned AIRUS, INC - IA 423H MINEOLA IA
2019-04-30 712-787-1XXX 1000–1999Assigned AIRUS, INC - IA 423H NEOLA IA
2019-04-26 712-201-6XXX 6000–6999Assigned AIRUS, INC - IA 423H UNDERWOOD IA
2019-04-26 712-545-2XXX 2000–2999Assigned AIRUS, INC - IA 423H CRESCENT IA
2019-04-26 712-600-8XXX 8000–8999Assigned AIRUS, INC - IA 423H MISSOURVLY IA
2019-04-25 712-430-4XXX 4000–4999Assigned AIRUS, INC - IA 423H MALVERN IA
2019-04-25 712-525-2XXX 2000–2999Assigned AIRUS, INC - IA 423H SILVERCITY IA
2019-04-23 712-847-5XXX 5000–5999Assigned AIRUS, INC - IA 423H CARTERLAKE IA
2018-02-05 712-220-9XXX 9000–9999Assigned AIRUS, INC - IA 423H CARROLL IA
2018-02-05 712-340-9XXX 9000–9999Assigned AIRUS, INC - IA 423H ATLANTIC IA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.