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 601
AIRUS, INC. - MS 28
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
2021-09-27 601-367-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H WIGGINS MS
2021-09-27 601-658-3XXX 3000–3999Assigned AIRUS, INC. - MS 459H HATTIESBG MS
2021-08-10 601-901-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H TAYLORSVL MS
2020-11-12 601-325-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H HATTIESBG MS
2020-05-18 601-872-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H POPLARVL MS
2020-03-03 601-910-3XXX 3000–3999Assigned AIRUS, INC. - MS 459H CLINTON MS
2018-12-12 601-419-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H COLUMBIA MS
2018-12-12 601-642-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H VICKSBURG MS
2018-12-11 601-841-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H GLOSTER MS
2018-07-03 601-531-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H MERIDIAN MS
2018-02-21 601-521-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H MADISON MS
2018-02-07 601-419-2XXX 2000–2999Assigned AIRUS, INC. - MS 459H COLUMBIA MS
2018-02-07 601-501-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H VICKSBURG MS
2018-02-07 601-699-5XXX 5000–5999Assigned AIRUS, INC. - MS 459H LAUREL MS
2018-02-07 601-716-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H WIGGINS MS
2018-02-07 601-730-7XXX 7000–7999Assigned AIRUS, INC. - MS 459H MCCOMB MS
2018-02-06 601-724-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H BRANDON MS
2017-08-30 601-910-2XXX 2000–2999Assigned AIRUS, INC. - MS 459H CLINTON MS
2017-07-13 601-588-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H BEAUMONT MS
2017-07-13 601-963-3XXX 3000–3999Assigned AIRUS, INC. - MS 459H BUCKATUNNA MS
2017-07-05 601-890-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H CENTREVL MS
2017-03-10 601-286-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H MERIDIAN MS
2016-10-31 601-228-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H CENTREVL MS
2016-07-21 601-746-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H POPLARVL MS
2016-07-21 601-897-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H NATCHEZ MS
2016-04-28 601-300-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H GLOSTER MS
2016-02-23 601-282-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H MERIDIAN MS
2016-02-23 601-909-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H HATTIESBG MS

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.