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 220
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
2026-06-16 220-259-5XXX 5000–5999Assigned TELNYX LLC 073H FREDERCKTN OH
2023-04-14 220-220-9XXX 9000–9999Assigned TELNYX LLC 073H ALEXANDRIA OH
2022-04-05 220-386-0XXX 0000–0999Assigned TELNYX LLC 073H CHESAPEAKE OH
2022-04-05 220-500-1XXX 1000–1999Assigned TELNYX LLC 073H MILLERSPT OH
2021-10-06 220-222-1XXX 1000–1999Assigned TELNYX LLC 073H ROSEVILLE OH
2021-05-07 220-212-0XXX 0000–0999Assigned TELNYX LLC 073H PATASKALA OH
2021-04-14 220-440-0XXX 0000–0999Assigned TELNYX LLC 073H FRAZEYSBG OH
2021-02-08 220-766-0XXX 0000–0999Assigned TELNYX LLC 073H WALNUT OH
2020-12-29 220-300-1XXX 1000–1999Assigned TELNYX LLC 073H WILKESVL OH
2020-12-29 220-710-0XXX 0000–0999Assigned TELNYX LLC 073H PORTSMOUTH OH
2020-12-29 220-842-0XXX 0000–0999Assigned TELNYX LLC 073H WELLSTON OH
2020-12-28 220-356-0XXX 0000–0999Assigned TELNYX LLC 073H BYESVILLE OH
2020-12-28 220-666-5XXX 5000–5999Assigned TELNYX LLC 073H BALTIMORE OH
2020-12-21 220-226-0XXX 0000–0999Assigned TELNYX LLC 073H AMANDA OH
2020-12-16 220-758-1XXX 1000–1999Assigned TELNYX LLC 073H REINELHKNY OH
2020-12-15 220-200-8XXX 8000–8999Assigned TELNYX LLC 073H FRAZEYSBG OH
2020-12-10 220-220-1XXX 1000–1999Assigned TELNYX LLC 073H ALEXANDRIA OH
2019-06-21 220-800-1XXX 1000–1999Assigned TELNYX LLC 073H WLAFAYETTE OH
2019-06-21 220-900-1XXX 1000–1999Assigned TELNYX LLC 073H SUGARGROVE OH

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.