NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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, last 30 days — NPA 574
OPENTACT INC. 4
PEERLESS NETWORK OF INDIANA, LLC - IN 1
ONVOY, LLC - IN 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 1
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
2021-03-02 574-701-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D GALVESTON IN
2021-03-02 574-758-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D WALTON IN
2021-03-02 574-859-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D DEER CREEK IN
2021-02-24 574-263-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D TIPPECANOE IN
2021-02-24 574-821-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D MIDDLEBURY IN
2021-02-24 574-822-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D MIDDLEBURY IN
2021-02-23 574-366-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2021-02-23 574-366-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2021-02-23 574-366-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2021-02-23 574-366-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2021-02-23 574-366-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2021-02-18 574-201-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ROCHESTER IN
2021-02-05 574-240-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MONTICELLO IN
2021-02-05 574-373-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WARSAW IN
2021-02-05 574-544-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2021-01-29 574-501-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2021-01-29 574-501-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2021-01-29 574-501-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2021-01-11 574-847-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 ROCHESTER IN
2021-01-07 574-368-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2021-01-07 574-368-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-12-08 574-359-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D ELKHART IN
2020-12-08 574-359-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D ELKHART IN
2020-12-08 574-359-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D ELKHART IN
2020-12-08 574-359-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D ELKHART IN
2020-12-01 574-977-0XXX 0000–0999Assigned TELNYX LLC 073H WYATT IN
2020-11-30 574-366-1XXX 1000–1999Assigned STRATUS NETWORKS 495J SOUTH BEND IN
2020-11-20 574-359-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2020-11-20 574-359-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2020-11-18 574-528-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SYRACUSE IN
2020-11-05 574-359-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-10-30 574-501-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GOSHEN IN
2020-10-30 574-501-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GOSHEN IN
2020-10-21 574-544-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2020-10-21 574-544-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2020-10-21 574-622-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F BRISTOL IN
2020-10-21 574-777-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2020-10-21 574-777-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2020-10-12 574-263-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D TIPPECANOE IN
2020-10-12 574-263-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D TIPPECANOE IN
2020-10-12 574-352-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D ELKHART IN
2020-10-12 574-352-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D ELKHART IN

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.