NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 847
ONVOY, LLC 2
BANDWIDTH.COM CLEC, LLC - 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
2004-06-22 847-915-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2004-06-21 847-213-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2004-06-21 847-325-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K WHEELING IL
2004-06-21 847-693-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K WAUKEGAN IL
2004-06-21 847-920-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K WILMETTE IL
2004-06-21 847-999-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K WINNETKA IL
2004-06-18 847-214-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2004-06-18 847-242-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K GLENCOE IL
2004-06-18 847-260-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K FRANKLINPK IL
2004-06-18 847-282-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K DEERFIELD IL
2004-06-18 847-283-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEFOREST IL
2004-06-18 847-307-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEZURICH IL
2004-06-18 847-448-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K EVANSTON IL
2004-06-18 847-485-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K PALATINE IL
2004-06-18 847-616-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K BENSENVL IL
2004-06-18 847-852-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K BARRINGTON IL
2004-06-18 847-871-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ELK GROVE IL
2004-06-18 847-939-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K PARK RIDGE IL
2004-06-18 847-960-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ALGONQUIN IL
2004-06-17 847-406-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-06-17 847-890-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-06-14 847-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-14 847-400-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-14 847-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-14 847-656-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-14 847-790-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-06-03 847-613-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2004-05-28 847-636-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-05-28 847-636-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-05-28 847-636-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-05-28 847-636-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-05-24 847-666-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-24 847-666-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-24 847-666-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-24 847-666-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-24 847-666-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-24 847-666-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-05-21 847-410-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2004-05-19 847-617-0XXX 0000–0999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-1XXX 1000–1999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-19 847-617-9XXX 9000–9999Assigned ILLINOIS BELL TEL CO 9329 WHEELING IL
2004-05-10 847-636-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2004-05-10 847-636-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DESPLAINES 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.