NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

22 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 6
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-12-29 224-437-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2021-12-29 224-437-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2021-12-23 224-448-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2021-12-22 224-382-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-12-22 224-382-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-12-22 224-382-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-12-22 224-382-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2021-12-07 224-445-0XXX 0000–0999Assigned TELNYX LLC 073H ANTIOCH IL
2021-12-03 224-382-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 GLENVIEW IL
2021-12-03 224-833-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-12-03 224-833-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-12-03 224-833-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-12-03 224-866-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-12-03 224-866-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-11-29 224-376-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FOX LAKE IL
2021-11-22 224-799-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 NORTHBROOK IL
2021-11-19 224-351-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2021-11-19 224-377-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2021-11-19 224-850-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2021-11-19 224-850-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2021-11-17 224-439-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-04 224-341-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SKOKIE IL
2021-11-04 224-833-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-11-04 224-833-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-11-04 224-833-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-11-04 224-833-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2021-10-29 224-866-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-10-29 224-866-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-10-28 224-373-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H DEERFIELD IL
2021-10-28 224-373-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DEERFIELD IL
2021-10-27 224-395-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BENSENVL IL
2021-10-27 224-395-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BENSENVL IL
2021-10-27 224-455-5XXX 5000–5999Assigned FRACTEL, LLC 965H WAUKEGAN IL
2021-10-27 224-466-6XXX 6000–6999Assigned FRACTEL, LLC 965H NORTHBROOK IL
2021-10-27 224-770-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BARRINGTON IL
2021-10-27 224-833-3XXX 3000–3999Assigned FRACTEL, LLC 965H ELGIN IL
2021-10-27 224-844-4XXX 4000–4999Assigned FRACTEL, LLC 965H ARLIGTNHTS IL
2021-10-27 224-850-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CARY IL
2021-10-27 224-850-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CARY IL
2021-10-25 224-438-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-10-25 224-438-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH 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.