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
2020-04-14 574-319-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D TWELVEMILE IN
2020-04-14 574-319-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D TWELVEMILE IN
2020-04-14 574-465-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D ROYAL CTR IN
2020-04-14 574-465-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D ROYAL CTR IN
2020-04-14 574-475-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D LUCERNE IN
2020-04-14 574-475-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D LUCERNE IN
2020-04-14 574-475-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D LUCERNE IN
2020-04-14 574-475-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D LUCERNE IN
2020-03-11 574-330-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MILLERSBG IN
2020-03-11 574-822-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MIDDLEBURY IN
2020-03-11 574-966-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F BRISTOL IN
2020-03-10 574-336-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2020-03-04 574-500-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2020-03-04 574-500-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2020-03-04 574-500-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2020-03-04 574-500-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2020-02-17 574-564-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-02-17 574-564-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-02-17 574-564-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-02-17 574-564-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-02-17 574-564-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-31 574-346-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-31 574-346-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-31 574-346-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-31 574-346-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-31 574-346-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2020-01-27 574-888-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F SOUTH BEND IN
2020-01-23 574-348-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F HAMLET IN
2020-01-23 574-688-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F PIERCETON IN
2020-01-23 574-804-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NO LIBERTY IN
2020-01-23 574-943-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F IDAVILLE IN
2020-01-08 574-652-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D BURROWS IN
2020-01-08 574-686-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D CAMDEN IN
2020-01-08 574-859-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D DEER CREEK IN
2019-12-27 574-228-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BURNETTSVL IN
2019-12-26 574-338-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2019-12-26 574-500-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2019-12-11 574-336-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LOGANSPORT IN
2019-12-10 574-931-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SOUTH BEND IN
2019-11-25 574-600-1XXX 1000–1999Assigned TELNYX LLC 073H CULVER IN
2019-11-01 574-666-0XXX 0000–0999Assigned INTRADO COMMUNICATIONS, LLC 817C SOUTH BEND IN
2019-11-01 574-666-1XXX 1000–1999Assigned INTRADO COMMUNICATIONS, LLC 817C SOUTH BEND IN
2019-11-01 574-666-8XXX 8000–8999Assigned INTRADO COMMUNICATIONS, LLC 817C SOUTH BEND IN
2019-10-16 574-345-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2019-10-15 574-777-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2019-10-15 574-777-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2019-09-19 574-346-0XXX 0000–0999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F ELKHART IN
2019-09-19 574-346-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F ELKHART IN
2019-09-18 574-710-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SOUTH BEND IN
2019-08-22 574-526-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG 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.