NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 217
CENTURYLINK COMMUNICATIONS, LLC 81
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
2017-04-26 217-884-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REDMON IL
2017-04-25 217-269-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHRISMAN IL
2017-04-25 217-275-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VERMILION IL
2017-04-25 217-279-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEST UNION IL
2017-04-25 217-340-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARSHALL IL
2017-04-25 217-385-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROCTON IL
2017-04-25 217-712-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PARIS IL
2017-04-25 217-887-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J METCALF IL
2016-05-13 217-207-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST JOSEPH IL
2016-05-13 217-288-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIDELL IL
2016-05-13 217-387-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THAWVILLE IL
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
2016-05-12 217-395-7XXX 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
2016-05-12 217-582-7XXX 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
2016-05-10 217-386-7XXX 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

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.