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
2006-03-28 574-265-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WARSAW IN
2006-03-22 574-226-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2006-03-22 574-807-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2006-03-22 574-807-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2006-03-21 574-904-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-03-21 574-904-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-03-21 574-904-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-03-15 574-221-4XXX 4000–4999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F NAPPANEE IN
2006-03-10 574-835-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCHESTER IN
2006-02-28 574-524-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2006-02-28 574-707-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSCEOLA IN
2006-02-20 574-323-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2006-02-10 574-584-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 ELKHART IN
2006-02-10 574-855-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-02-01 574-302-8XXX 8000–8999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2006-01-20 574-302-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-01-20 574-302-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-01-20 574-524-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2006-01-13 574-742-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C OSCEOLA IN
2006-01-09 574-304-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2006-01-09 574-304-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2006-01-09 574-575-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2006-01-09 574-807-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2006-01-09 574-807-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2006-01-03 574-339-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-01-03 574-607-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSCEOLA IN
2005-12-28 574-808-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MONTICELLO IN
2005-11-22 574-312-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2005-11-21 574-606-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2005-11-21 574-702-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2005-11-11 574-204-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2005-11-11 574-807-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2005-11-10 574-607-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSCEOLA IN
2005-11-04 574-807-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2005-11-04 574-807-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2005-10-27 574-204-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2005-10-25 574-204-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2005-10-25 574-204-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2005-10-25 574-204-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2005-10-14 574-302-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2005-10-14 574-302-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2005-09-21 574-538-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2005-09-06 574-309-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2005-09-06 574-309-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2005-09-06 574-309-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2005-09-01 574-217-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2005-09-01 574-988-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J NEWCARLISL IN
2005-08-31 574-333-0XXX 0000–0999Assigned COMMUNICATIONS VENTURE CORP DBA INDIGITAL TELECOM 4169 ELKHART IN
2005-08-31 574-377-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2005-08-19 574-306-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WARSAW 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.