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 228
TELNYX LLC 19
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
2023-06-05 228-279-0XXX 0000–0999Assigned TELNYX LLC 073H GULFPORT MS
2023-06-05 228-279-1XXX 1000–1999Assigned TELNYX LLC 073H GULFPORT MS
2022-07-11 228-250-1XXX 1000–1999Assigned TELNYX LLC 073H BILOXI MS
2022-04-06 228-263-3XXX 3000–3999Assigned TELNYX LLC 073H GULFPORT MS
2021-11-23 228-213-1XXX 1000–1999Assigned TELNYX LLC 073H GULFPORT MS
2021-04-30 228-250-0XXX 0000–0999Assigned TELNYX LLC 073H BILOXI MS
2020-06-29 228-335-0XXX 0000–0999Assigned TELNYX LLC 073H TANNERWLMS MS
2019-12-20 228-469-1XXX 1000–1999Assigned TELNYX LLC 073H BAYSTLOUIS MS
2019-11-06 228-471-8XXX 8000–8999Assigned TELNYX LLC 073H PASCAGOULA MS
2018-07-12 228-226-0XXX 0000–0999Assigned TELNYX LLC 073H BAYSTLOUIS MS
2018-07-12 228-460-4XXX 4000–4999Assigned TELNYX LLC 073H MOSS POINT MS
2018-07-12 228-826-8XXX 8000–8999Assigned TELNYX LLC 073H VANCLEAVE MS
2018-07-12 228-901-1XXX 1000–1999Assigned TELNYX LLC 073H HURLEY MS
2017-03-07 228-202-2XXX 2000–2999Assigned TELNYX LLC 073H PASCAGOULA MS
2017-03-07 228-271-9XXX 9000–9999Assigned TELNYX LLC 073H BILOXI MS
2017-03-07 228-282-8XXX 8000–8999Assigned TELNYX LLC 073H OCEAN SPG MS
2017-03-07 228-364-8XXX 8000–8999Assigned TELNYX LLC 073H PASSCHRSTN MS
2017-02-27 228-888-8XXX 8000–8999Assigned TELNYX LLC 073H PEARLINGTN MS
2016-12-22 228-256-1XXX 1000–1999Assigned TELNYX LLC 073H GULFPORT MS

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.