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
2023-07-13 574-933-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D PLYMOUTH IN
2023-07-13 574-933-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D PLYMOUTH IN
2023-07-13 574-933-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D PLYMOUTH IN
2023-07-13 574-933-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D PLYMOUTH IN
2023-07-10 574-931-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J SOUTH BEND IN
2023-06-16 574-225-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2023-06-16 574-305-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D MILLWOOD IN
2023-06-16 574-376-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D WARSAW IN
2023-06-16 574-395-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2023-06-16 574-398-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-05-26 574-348-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HAMLET IN
2023-05-26 574-356-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J NAPPANEE IN
2023-05-26 574-521-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SYRACUSE IN
2023-05-18 574-847-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ROCHESTER IN
2023-05-09 574-395-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2023-05-09 574-395-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2023-05-02 574-388-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LAPAZ IN
2023-05-02 574-392-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GOSHEN IN
2023-05-02 574-395-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SOUTH BEND IN
2023-04-27 574-355-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2023-04-27 574-381-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2023-04-12 574-688-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PIERCETON IN
2023-04-07 574-221-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPPANEE IN
2023-04-07 574-356-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NAPPANEE IN
2023-04-02 574-848-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BRISTOL IN
2023-03-24 574-313-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D FLORA IN
2023-03-09 574-375-4XXX 4000–4999Assigned TELNYX LLC 073H TIPPECANOE IN
2023-03-09 574-397-8XXX 8000–8999Assigned HD CARRIER LLC 321J SOUTH BEND IN
2023-03-09 574-397-9XXX 9000–9999Assigned HD CARRIER LLC 321J SOUTH BEND IN
2023-03-08 574-205-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2023-02-24 574-396-9XXX 9000–9999Assigned AT&T - LOCAL 7421 OSCEOLA IN
2023-02-22 574-355-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LOGANSPORT IN
2023-02-16 574-336-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2023-02-01 574-395-1XXX 1000–1999Assigned NUSO, LLC 732J SOUTH BEND IN
2023-01-12 574-275-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SYRACUSE IN
2023-01-12 574-275-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SYRACUSE IN
2023-01-10 574-392-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2023-01-05 574-373-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WARSAW IN
2022-12-21 574-549-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARSAW IN
2022-12-15 574-336-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT 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
2022-11-18 574-290-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D KEWANNA IN
2022-11-09 574-570-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D PLYMOUTH IN
2022-11-08 574-381-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2022-11-08 574-381-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2022-11-07 574-205-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2022-11-07 574-227-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D MILLWOOD IN
2022-11-07 574-808-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D MONTICELLO IN
2022-11-04 574-380-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ATWOOD 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.