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
2009-08-19 224-223-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-08-19 224-223-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-08-19 224-223-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-08-19 224-223-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2009-08-14 224-828-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-08-14 224-828-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-08-11 224-221-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 NORTHBROOK IL
2009-08-11 224-523-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-08-03 224-353-1XXX 1000–1999Assigned ONVOY, LLC 224C ROSELLE IL
2009-07-29 224-676-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K WHEELING IL
2009-07-27 224-357-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CARY IL
2009-07-27 224-531-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2009-07-17 224-636-5XXX 5000–5999Assigned ONVOY, LLC 224C NORTHBROOK IL
2009-07-17 224-828-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-07-17 224-828-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-07-17 224-828-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-07-17 224-828-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-07-13 224-280-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2009-07-13 224-280-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2009-07-13 224-532-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHEELING IL
2009-07-13 224-875-3XXX 3000–3999Assigned ONVOY, LLC 224C ELK GROVE IL
2009-07-09 224-568-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-09 224-568-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALF DAY IL
2009-07-06 224-554-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2009-07-06 224-632-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2009-06-15 224-475-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2009-06-12 224-795-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2009-06-12 224-795-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2009-06-05 224-935-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SKOKIE IL
2009-06-05 224-935-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SKOKIE IL
2009-06-04 224-433-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LIBERTYVL IL
2009-06-04 224-585-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PARK RIDGE IL
2009-05-27 224-484-3XXX 3000–3999Assigned ONVOY, LLC 224C DUNDEE IL
2009-05-18 224-523-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2009-05-18 224-572-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2009-05-11 224-325-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-05-11 224-325-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-05-11 224-325-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2009-05-04 224-592-1XXX 1000–1999Assigned ONVOY, LLC 224C SKOKIE IL
2009-05-01 224-634-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2009-04-29 224-783-1XXX 1000–1999Assigned ILLINOIS BELL TEL CO 9329 ELGIN IL
2009-04-29 224-783-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 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.