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
2023-10-04 574-341-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH IN
2023-10-03 574-910-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WALKERTON IN
2023-09-27 574-395-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2023-09-27 574-395-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2023-09-27 574-600-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F CULVER IN
2023-09-21 574-376-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D WARSAW IN
2023-09-21 574-385-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D WARSAW IN
2023-09-21 574-746-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2023-09-21 574-746-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2023-09-21 574-746-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2023-09-21 574-746-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2023-09-21 574-746-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D DUNLAP IN
2023-09-21 574-901-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-21 574-901-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D LOGANSPORT IN
2023-09-18 574-390-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2023-09-13 574-396-0XXX 0000–0999Assigned COMMIO, LLC 939H OSCEOLA IN
2023-09-13 574-396-1XXX 1000–1999Assigned COMMIO, LLC 939H OSCEOLA IN
2023-09-13 574-396-2XXX 2000–2999Assigned COMMIO, LLC 939H OSCEOLA IN
2023-09-13 574-396-3XXX 3000–3999Assigned COMMIO, LLC 939H OSCEOLA IN
2023-09-13 574-396-8XXX 8000–8999Assigned COMMIO, LLC 939H OSCEOLA IN
2023-09-12 574-317-0XXX 0000–0999Assigned COMMIO, LLC 939H BRISTOL IN
2023-09-12 574-317-1XXX 1000–1999Assigned COMMIO, LLC 939H BRISTOL IN
2023-09-12 574-317-2XXX 2000–2999Assigned COMMIO, LLC 939H BRISTOL IN
2023-09-12 574-317-3XXX 3000–3999Assigned COMMIO, LLC 939H BRISTOL IN
2023-09-12 574-317-4XXX 4000–4999Assigned COMMIO, LLC 939H BRISTOL IN
2023-09-05 574-392-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2023-09-05 574-946-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D WINAMAC IN
2023-08-30 574-354-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NAPPANEE IN
2023-08-09 574-331-9XXX 9000–9999Assigned TELNYX LLC 073H BREMEN IN
2023-08-08 574-395-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2023-08-01 574-397-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2023-07-14 574-230-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D KEWANNA IN
2023-07-14 574-297-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D MONTICELLO IN
2023-07-14 574-313-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D FLORA IN
2023-07-14 574-356-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D NAPPANEE IN
2023-07-14 574-390-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D ELKHART IN
2023-07-14 574-390-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D ELKHART IN
2023-07-14 574-390-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D ELKHART IN
2023-07-14 574-390-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D ELKHART IN
2023-07-14 574-392-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2023-07-14 574-392-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2023-07-14 574-392-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2023-07-14 574-392-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2023-07-14 574-392-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D GOSHEN IN
2023-07-13 574-933-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D PLYMOUTH 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.