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 574
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-08-09 574-331-9XXX 9000–9999Assigned TELNYX LLC 073H BREMEN IN
2023-03-09 574-375-4XXX 4000–4999Assigned TELNYX LLC 073H TIPPECANOE IN
2022-11-28 574-331-8XXX 8000–8999Assigned TELNYX LLC 073H BREMEN IN
2022-11-28 574-667-9XXX 9000–9999Assigned TELNYX LLC 073H OSCEOLA IN
2021-09-30 574-375-8XXX 8000–8999Assigned TELNYX LLC 073H TIPPECANOE IN
2021-09-30 574-834-9XXX 9000–9999Assigned TELNYX LLC 073H NO WEBSTER IN
2020-12-01 574-977-0XXX 0000–0999Assigned TELNYX LLC 073H WYATT IN
2020-06-18 574-263-8XXX 8000–8999Assigned TELNYX LLC 073H TIPPECANOE IN
2020-06-18 574-900-8XXX 8000–8999Assigned TELNYX LLC 073H WAKARUSA IN
2020-06-16 574-244-8XXX 8000–8999Assigned TELNYX LLC 073H NO WEBSTER IN
2020-06-16 574-896-1XXX 1000–1999Assigned TELNYX LLC 073H NO JUDSON IN
2020-06-15 574-821-8XXX 8000–8999Assigned TELNYX LLC 073H MIDDLEBURY IN
2020-06-11 574-500-9XXX 9000–9999Assigned TELNYX LLC 073H GOSHEN IN
2020-05-29 574-564-8XXX 8000–8999Assigned TELNYX LLC 073H ELKHART IN
2020-05-29 574-891-1XXX 1000–1999Assigned TELNYX LLC 073H DUNLAP IN
2020-05-26 574-766-0XXX 0000–0999Assigned TELNYX LLC 073H CLAYPOOL IN
2020-05-18 574-301-8XXX 8000–8999Assigned TELNYX LLC 073H BREMEN IN
2020-05-18 574-622-9XXX 9000–9999Assigned TELNYX LLC 073H BRISTOL IN
2019-11-25 574-600-1XXX 1000–1999Assigned TELNYX LLC 073H CULVER IN
2018-05-15 574-216-2XXX 2000–2999Assigned TELNYX LLC 073H CULVER IN
2018-05-15 574-444-9XXX 9000–9999Assigned TELNYX LLC 073H OSCEOLA IN
2018-05-15 574-931-8XXX 8000–8999Assigned TELNYX LLC 073H SOUTH BEND IN

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.