NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 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, 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
2021-11-16 574-325-9XXX 9000–9999Assigned COMMIO, LLC 939H SYRACUSE IN
2021-11-16 574-696-7XXX 7000–7999Assigned COMMIO, LLC 939H MILFORD IN
2021-11-16 574-696-8XXX 8000–8999Assigned COMMIO, LLC 939H MILFORD IN
2021-11-10 574-354-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NAPPANEE IN
2021-11-09 574-374-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GOSHEN IN
2021-11-09 574-374-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GOSHEN IN
2021-11-05 574-200-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2021-11-05 574-200-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2021-11-05 574-212-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D MONTEREY IN
2021-11-05 574-227-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D MILLWOOD IN
2021-11-04 574-384-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D KNOX IN
2021-11-04 574-384-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D KNOX IN
2021-11-01 574-378-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2021-11-01 574-378-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2021-11-01 574-378-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2021-11-01 574-888-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2021-11-01 574-888-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2021-10-28 574-316-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F PLYMOUTH IN
2021-10-28 574-316-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F PLYMOUTH IN
2021-10-22 574-366-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2021-10-22 574-366-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2021-10-22 574-366-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2021-10-22 574-544-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2021-10-22 574-544-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2021-10-22 574-544-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2021-10-20 574-365-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FULTON IN
2021-10-20 574-365-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FULTON IN
2021-10-20 574-369-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ELKHART IN
2021-10-20 574-369-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ELKHART IN
2021-10-19 574-249-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D KNOX IN
2021-10-19 574-285-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D NAPPANEE IN
2021-10-11 574-369-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2021-10-07 574-544-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND 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
2021-09-28 574-321-3XXX 3000–3999Assigned METROPCS, INC. 5562 ROCHESTER IN
2021-09-28 574-373-7XXX 7000–7999Assigned METROPCS, INC. 5562 WARSAW IN
2021-09-27 574-353-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MENTONE IN
2021-09-27 574-374-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2021-09-23 574-379-0XXX 0000–0999Assigned COMMIO, LLC 939H AKRON IN
2021-09-23 574-379-1XXX 1000–1999Assigned COMMIO, LLC 939H AKRON IN
2021-09-23 574-379-2XXX 2000–2999Assigned COMMIO, LLC 939H AKRON IN
2021-09-23 574-893-9XXX 9000–9999Assigned COMMIO, LLC 939H AKRON IN
2021-09-22 574-388-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D LAPAZ IN
2021-09-22 574-388-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D LAPAZ IN
2021-09-17 574-375-0XXX 0000–0999Assigned COMMIO, LLC 939H TIPPECANOE IN
2021-09-17 574-375-1XXX 1000–1999Assigned COMMIO, LLC 939H TIPPECANOE IN
2021-09-17 574-375-2XXX 2000–2999Assigned COMMIO, LLC 939H TIPPECANOE IN
2021-09-14 574-378-1XXX 1000–1999Assigned IP HORIZON LLC 515J SOUTH BEND IN
2021-09-13 574-374-0XXX 0000–0999Assigned COMMIO, LLC 939H GOSHEN 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.