NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 815
VERSATEL LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 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
2007-10-18 815-424-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J ELWOOD IL
2007-10-16 815-326-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OGLESBY IL
2007-10-16 815-326-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OGLESBY IL
2007-10-16 815-575-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOODSTOCK IL
2007-10-16 815-993-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OGLESBY IL
2007-10-15 815-701-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2007-09-27 815-844-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PONTIAC IL
2007-09-20 815-630-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-09-13 815-666-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2007-09-10 815-708-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-09-10 815-708-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-09-07 815-417-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K BRAIDWOOD IL
2007-09-07 815-516-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROCKFORD IL
2007-09-05 815-701-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 WOODSTOCK IL
2007-08-27 815-527-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WOODSTOCK IL
2007-08-17 815-556-7XXX 7000–7999Assigned METROPCS, INC. 5562 PLAINFIELD IL
2007-08-17 815-780-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 LA SALLE IL
2007-08-16 815-335-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WINNEBAGO IL
2007-08-16 815-406-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BYRON IL
2007-08-16 815-539-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MENDOTA IL
2007-08-16 815-638-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LA MOILLE IL
2007-08-16 815-645-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J STILMANVLY IL
2007-08-16 815-646-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TISKILWA IL
2007-08-16 815-663-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SPRING VLY IL
2007-08-16 815-699-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WYANET IL
2007-08-16 815-765-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J POPLAR GRV IL
2007-08-16 815-885-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROCK CUT IL
2007-08-16 815-894-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LADD IL
2007-08-16 815-915-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PRINCETON IL
2007-08-15 815-580-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHERRY VLY IL
2007-08-15 815-616-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FREEPORT IL
2007-08-13 815-708-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-08-13 815-793-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2007-08-13 815-876-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PRINCETON IL
2007-08-13 815-901-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DE KALB IL
2007-08-13 815-980-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-08-13 815-990-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 FREEPORT IL
2007-08-09 815-691-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J UTICA IL
2007-08-09 815-780-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LA SALLE IL
2007-08-09 815-881-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J OREGON IL
2007-08-09 815-993-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OGLESBY IL
2007-08-02 815-614-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KANKAKEE IL
2007-07-24 815-217-1XXX 1000–1999Assigned METROPCS, INC. 5562 DE KALB IL
2007-07-10 815-677-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DIXON IL
2007-07-02 815-527-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 WOODSTOCK IL
2007-06-29 815-227-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-06-29 815-295-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KANKAKEE IL
2007-06-29 815-508-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE KALB IL
2007-06-29 815-980-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2007-06-29 815-980-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD 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.