NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

10 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 217
ONVOY, LLC 3
NEW CINGULAR WIRELESS PCS, LLC - IL 3
EXIANT COMMUNICATIONS LLC 3
OPENTACT INC. 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-06-07 217-974-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHAMPAURBN IL
2007-06-07 217-993-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SPRINGFLD IL
2007-04-12 217-597-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2007-04-11 217-504-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2007-04-11 217-504-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2007-04-11 217-607-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CHAMPAURBN IL
2007-04-11 217-607-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CHAMPAURBN IL
2007-04-11 217-663-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2007-04-03 217-819-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-04-03 217-819-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-03-26 217-848-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DECATUR IL
2007-03-19 217-314-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LINCOLN IL
2007-03-07 217-381-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2007-03-07 217-381-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2007-03-07 217-381-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2007-03-07 217-679-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SPRINGFLD IL
2007-03-07 217-679-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SPRINGFLD IL
2007-03-01 217-577-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 QUINCY IL
2007-02-01 217-605-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LINCOLN IL
2007-02-01 217-605-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LINCOLN IL
2007-01-18 217-690-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EFFINGHAM IL
2007-01-18 217-799-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2007-01-18 217-799-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2007-01-12 217-418-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-01-12 217-418-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-01-12 217-671-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN IL
2007-01-12 217-671-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN IL
2007-01-11 217-819-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J CHAMPAURBN IL
2007-01-11 217-819-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CHAMPAURBN IL
2007-01-09 217-313-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LITCHFIELD IL
2007-01-09 217-358-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DECATUR IL
2007-01-09 217-710-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LITCHFIELD IL
2007-01-09 217-883-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2007-01-09 217-883-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2007-01-09 217-883-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2006-12-18 217-690-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EFFINGHAM IL
2006-11-22 217-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2006-11-22 217-801-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2006-11-22 217-801-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2006-11-22 217-801-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD IL
2006-11-10 217-712-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PARIS IL
2006-11-08 217-418-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2006-11-02 217-317-2XXX 2000–2999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F MATTOON IL
2006-10-23 217-799-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2006-10-23 217-799-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2006-10-18 217-597-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2006-10-11 217-508-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHARLESTON IL
2006-10-11 217-690-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2006-08-31 217-565-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAYLORVL IL
2006-08-31 217-565-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAYLORVL IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.