NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 224
NEW CINGULAR WIRELESS PCS, LLC - IL 11
ONVOY, LLC 5
VERSATEL LLC 1
INTRADO COMMUNICATIONS, LLC 1
EXIANT COMMUNICATIONS LLC 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-01-06 224-435-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2020-01-06 224-607-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-607-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-607-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-666-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2020-01-06 224-766-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2019-12-09 224-288-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2019-12-09 224-288-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2019-12-09 224-754-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HIGHLANDPK IL
2019-11-26 224-296-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D EVANSTON IL
2019-11-25 224-842-0XXX 0000–0999Assigned TELNYX LLC 073H LIBERTYVL IL
2019-11-22 224-758-0XXX 0000–0999Assigned TELNYX LLC 073H ELK GROVE IL
2019-11-13 224-367-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DUNDEE IL
2019-11-05 224-516-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-24 224-319-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2019-10-21 224-289-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2019-10-21 224-289-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2019-10-18 224-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H ELK GROVE IL
2019-10-16 224-362-8XXX 8000–8999Assigned FRACTEL, LLC 965H ZION IL
2019-10-16 224-842-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LIBERTYVL IL
2019-10-14 224-342-6XXX 6000–6999Assigned FRACTEL, LLC 965H ARLIGTNHTS IL
2019-10-14 224-367-7XXX 7000–7999Assigned FRACTEL, LLC 965H DUNDEE IL
2019-10-14 224-488-8XXX 8000–8999Assigned FRACTEL, LLC 965H GLENVIEW IL
2019-10-14 224-842-5XXX 5000–5999Assigned FRACTEL, LLC 965H LIBERTYVL IL
2019-10-11 224-317-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-348-6XXX 6000–6999Assigned FRACTEL, LLC 965H ALGONQUIN IL
2019-10-11 224-933-3XXX 3000–3999Assigned FRACTEL, LLC 965H ROUND LAKE IL
2019-10-11 224-977-7XXX 7000–7999Assigned FRACTEL, LLC 965H NORTHBROOK IL
2019-10-04 224-781-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FRANKLINPK IL
2019-09-23 224-351-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HALF DAY IL
2019-09-10 224-288-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BARRINGTON IL
2019-08-21 224-289-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2019-08-21 224-297-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2019-08-21 224-297-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2019-08-21 224-297-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL

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.