NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2015-11-16 224-507-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2015-11-09 224-458-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E NORTHBROOK IL
2015-11-09 224-985-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PARK RIDGE IL
2015-11-05 224-257-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-11-05 224-443-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-11-05 224-760-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-11-05 224-760-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-11-04 224-470-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SKOKIE IL
2015-11-02 224-443-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-11-02 224-443-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-10-23 224-540-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2015-10-23 224-808-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2015-10-22 224-707-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HIGHLANDPK IL
2015-10-20 224-818-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2015-10-20 224-818-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2015-10-20 224-818-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2015-10-14 224-985-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PARK RIDGE IL
2015-10-13 224-908-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOX LAKE IL
2015-10-05 224-469-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2015-10-05 224-469-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2015-10-05 224-469-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2015-10-05 224-469-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2015-09-22 224-802-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DUNDEE IL
2015-09-17 224-571-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2015-09-17 224-571-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2015-09-16 224-760-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-09-16 224-760-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-09-16 224-760-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-09-11 224-443-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-09-11 224-443-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2015-09-11 224-501-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2015-09-11 224-808-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2015-09-11 224-808-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2015-09-02 224-470-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SKOKIE IL
2015-08-31 224-985-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PARK RIDGE IL
2015-08-26 224-509-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ALGONQUIN IL
2015-08-24 224-701-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAKE VILLA IL
2015-08-19 224-931-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2015-08-18 224-714-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C EVANSTON IL
2015-08-12 224-857-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2015-08-10 224-760-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2015-08-03 224-434-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2015-08-03 224-443-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DESPLAINES IL
2015-08-03 224-808-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2015-08-03 224-808-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2015-07-30 224-804-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DEERFIELD IL
2015-07-28 224-661-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K GLENVIEW IL
2015-07-20 224-408-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WILMETTE IL
2015-07-17 224-901-9XXX 9000–9999Assigned ONVOY, LLC 224C PISTAKHLDS IL
2015-07-08 224-339-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.