NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-05-13 217-485-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TOLONO IL
2016-05-13 217-559-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTVILLE IL
2016-05-13 217-569-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARMSTRONG IL
2016-05-13 217-599-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TUSCOLA IL
2016-05-13 217-643-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THOMASBORO IL
2016-05-13 217-678-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEMENT IL
2016-05-13 217-681-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VILLAGROVE IL
2016-05-13 217-688-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIDNEY IL
2016-05-13 217-759-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BISMARCK IL
2016-05-13 217-765-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALVIN IL
2016-05-12 217-215-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RANTOUL IL
2016-05-12 217-247-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIDGE FARM IL
2016-05-12 217-264-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PARIS IL
2016-05-12 217-395-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROBERTS IL
2016-05-12 217-397-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RANKIN IL
2016-05-12 217-495-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROSSVILLE IL
2016-05-12 217-579-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PAXTON IL
2016-05-12 217-582-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OGDEN IL
2016-05-12 217-583-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROYAL IL
2016-05-12 217-595-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PENFIELD IL
2016-05-12 217-598-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SADORUS IL
2016-05-12 217-684-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PHILO IL
2016-05-12 217-745-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIBLEY IL
2016-05-12 217-867-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PESOTUM IL
2016-05-12 217-987-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POTOMAC IL
2016-05-10 217-284-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J INDIANOLA IL
2016-05-10 217-286-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HENNING IL
2016-05-10 217-386-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LODA IL
2016-05-10 217-388-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MELVIN IL
2016-05-10 217-394-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BUCKLEY IL
2016-05-10 217-396-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LUDLOW IL
2016-05-10 217-564-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IVESDALE IL
2016-05-10 217-568-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GIFFORD IL
2016-05-10 217-590-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAHOMET IL
2016-05-10 217-631-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTICELLO IL
2016-05-10 217-680-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GIBSONCITY IL
2016-05-10 217-769-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOOPESTON IL
2016-05-10 217-837-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWMAN IL
2016-05-10 217-863-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BONDVILLE IL
2016-05-10 217-896-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOMER IL
2016-05-10 217-996-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKWOOD IL
2016-05-09 217-339-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHENEYVL IL
2016-05-09 217-375-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EAST LYNN IL
2016-05-09 217-427-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CATLIN IL
2016-05-09 217-548-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FITHIAN IL
2016-05-09 217-574-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FAIRMOUNT IL
2016-05-09 217-601-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GEORGETOWN IL
2016-05-09 217-694-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FLATVILLE IL
2016-05-09 217-695-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 QUINCY IL
2016-05-09 217-749-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELLIOTT 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.