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
2006-10-24 224-585-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PARK RIDGE IL
2006-10-20 224-456-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-20 224-456-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-10-19 224-422-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2006-10-19 224-422-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2006-10-19 224-422-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2006-10-17 224-338-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J ROUND LAKE IL
2006-10-11 224-321-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WAUKEGAN IL
2006-10-11 224-778-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K MUNDELEIN IL
2006-09-27 224-321-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2006-09-27 224-321-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2006-09-27 224-656-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WAUKEGAN IL
2006-09-27 224-927-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2006-09-27 224-927-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2006-09-27 224-927-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2006-09-27 224-927-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2006-09-19 224-676-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2006-09-19 224-676-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2006-09-18 224-436-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAKEFOREST IL
2006-09-15 224-944-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2006-09-15 224-944-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2006-09-12 224-552-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2006-09-12 224-552-9XXX 9000–9999Assigned ILLINOIS BELL TEL CO 9329 LAKEFOREST IL
2006-09-11 224-520-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ROSELLE IL
2006-09-06 224-535-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2006-09-06 224-535-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2006-09-05 224-433-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LIBERTYVL IL
2006-09-05 224-944-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WAUKEGAN IL
2006-09-01 224-484-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DUNDEE IL
2006-08-17 224-567-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2006-08-17 224-567-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2006-08-16 224-535-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2006-08-15 224-678-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2006-08-15 224-678-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2006-08-15 224-735-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-08-14 224-330-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-14 224-330-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-14 224-330-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-14 224-330-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-14 224-330-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-14 224-688-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2006-08-10 224-399-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WAUKEGAN IL
2006-08-10 224-944-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WAUKEGAN IL
2006-08-08 224-535-6XXX 6000–6999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 ELGIN 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.