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 657
TELNYX LLC 22
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-11-29 657-632-9XXX 9000–9999Assigned TELNYX LLC 073H FULLERTON CA
2022-11-22 657-643-0XXX 0000–0999Assigned TELNYX LLC 073H SANTA ANA CA
2021-02-01 657-486-0XXX 0000–0999Assigned TELNYX LLC 073H SILVERADO CA
2021-01-30 657-485-0XXX 0000–0999Assigned TELNYX LLC 073H HUNTITNBCH CA
2021-01-28 657-644-0XXX 0000–0999Assigned TELNYX LLC 073H CYPRESS CA
2021-01-28 657-688-0XXX 0000–0999Assigned TELNYX LLC 073H PLACENTIA CA
2020-12-15 657-724-7XXX 7000–7999Assigned TELNYX LLC 073H ANAHEIM CA
2019-12-11 657-385-0XXX 0000–0999Assigned TELNYX LLC 073H BUENA PARK CA
2019-12-11 657-391-1XXX 1000–1999Assigned TELNYX LLC 073H ORANGE CA
2019-07-15 657-226-2XXX 2000–2999Assigned TELNYX LLC 073H PLACENTIA CA
2019-07-15 657-236-2XXX 2000–2999Assigned TELNYX LLC 073H ORANGE CA
2019-07-08 657-722-4XXX 4000–4999Assigned TELNYX LLC 073H GARDEN GRV CA
2018-10-18 657-366-2XXX 2000–2999Assigned TELNYX LLC 073H YORBALINDA CA
2018-06-27 657-337-7XXX 7000–7999Assigned TELNYX LLC 073H CYPRESS CA
2018-06-27 657-359-9XXX 9000–9999Assigned TELNYX LLC 073H SILVERADO CA
2018-06-27 657-478-7XXX 7000–7999Assigned TELNYX LLC 073H BREA CA
2017-05-22 657-315-2XXX 2000–2999Assigned TELNYX LLC 073H PLACENTIA CA
2017-05-22 657-329-2XXX 2000–2999Assigned TELNYX LLC 073H HUNTITNBCH CA
2017-05-22 657-354-1XXX 1000–1999Assigned TELNYX LLC 073H FULLERTON CA
2017-05-22 657-364-0XXX 0000–0999Assigned TELNYX LLC 073H WESTMINSTR CA
2017-03-20 657-356-0XXX 0000–0999Assigned TELNYX LLC 073H SANTA ANA CA
2017-03-14 657-347-3XXX 3000–3999Assigned TELNYX LLC 073H ANAHEIM CA

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.