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
2019-07-09 574-900-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D WAKARUSA IN
2019-07-09 574-900-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D WAKARUSA IN
2019-06-19 574-328-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F BURKET IN
2019-05-30 574-500-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2019-05-14 574-328-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F BURKET IN
2019-05-13 574-544-4XXX 4000–4999Assigned COMMIO, LLC 939H SOUTH BEND IN
2019-04-23 574-633-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F WYATT IN
2019-04-23 574-900-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F WAKARUSA IN
2019-04-17 574-777-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2019-03-21 574-336-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2019-03-19 574-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H CULVER IN
2019-03-19 574-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H CULVER IN
2019-02-27 574-800-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2019-02-20 574-353-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MENTONE IN
2019-02-06 574-203-6XXX 6000–6999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F LAPAZ IN
2019-01-28 574-500-0XXX 0000–0999Assigned FRACTEL, LLC 965H GOSHEN IN
2019-01-28 574-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H SOUTH BEND IN
2019-01-28 574-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H WAKARUSA IN
2019-01-28 574-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H WAKARUSA IN
2019-01-23 574-581-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MONTICELLO IN
2018-12-27 574-888-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J SOUTH BEND IN
2018-12-10 574-971-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GOSHEN IN
2018-12-04 574-521-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SYRACUSE IN
2018-11-26 574-364-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F GOSHEN IN
2018-11-09 574-336-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2018-11-06 574-201-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ROCHESTER IN
2018-09-25 574-822-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D MIDDLEBURY IN
2018-09-24 574-564-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D ELKHART IN
2018-09-24 574-701-0XXX 0000–0999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F GALVESTON IN
2018-09-24 574-725-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F LOGANSPORT IN
2018-09-20 574-475-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D LUCERNE IN
2018-09-18 574-221-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NAPPANEE IN
2018-09-18 574-263-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D TIPPECANOE IN
2018-09-18 574-349-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2018-09-18 574-622-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D BRISTOL IN
2018-09-18 574-633-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D WYATT IN
2018-09-18 574-862-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D WAKARUSA IN
2018-09-18 574-891-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2018-09-17 574-505-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D MACY IN
2018-09-17 574-626-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D WALTON IN
2018-09-17 574-643-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D ROYAL CTR IN
2018-09-17 574-701-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D GALVESTON IN
2018-09-17 574-727-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2018-09-17 574-857-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D FULTON IN
2018-09-17 574-893-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D AKRON IN
2018-08-21 574-319-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D TWELVEMILE IN
2018-08-14 574-338-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2018-07-24 574-345-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2018-06-28 574-281-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ARGOS IN
2018-06-25 574-216-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CULVER 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.