NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 585
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-11-03 | 585-809-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CANANDAGUA | NY |
| 2022-11-03 | 585-809-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CANANDAGUA | NY |
| 2015-05-13 | 585-416-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WATERPORT | NY |
| 2015-05-13 | 585-437-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RUSHFORD | NY |
| 2015-05-13 | 585-535-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VARYSBURG | NY |
| 2015-05-13 | 585-648-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WELLSVILLE | NY |
| 2015-05-12 | 585-206-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HOLLEY | NY |
| 2015-05-12 | 585-318-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MEDINA | NY |
| 2015-05-12 | 585-379-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLEAN | NY |
| 2015-05-12 | 585-599-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CORFU | NY |
| 2015-05-12 | 585-659-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KENDALL | NY |
| 2015-05-12 | 585-714-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EASTAURORA | NY |
| 2015-05-12 | 585-757-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELBA | NY |
| 2015-05-12 | 585-866-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MIDDLEPORT | NY |
| 2015-05-12 | 585-948-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OAKFIELD | NY |
| 2015-05-12 | 585-968-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CUBA | NY |
| 2015-05-12 | 585-999-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | JAVA | NY |
| 2015-05-08 | 585-326-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AKRON | NY |
| 2015-05-08 | 585-357-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALBION | NY |
| 2015-05-08 | 585-386-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ANGELICA | NY |
| 2015-05-08 | 585-449-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELMONT | NY |
| 2015-05-08 | 585-524-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BATAVIA | NY |
| 2015-05-08 | 585-628-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELFAST | NY |
| 2015-05-08 | 585-653-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ARCADE | NY |
| 2015-05-08 | 585-656-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ATTICA | NY |
| 2015-05-08 | 585-800-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BOLIVAR | NY |
| 2015-05-08 | 585-900-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHAFFEE | NY |
| 2015-05-08 | 585-902-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALDEN | NY |
| 2014-09-26 | 585-634-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RUSHVILLE | NY |
| 2014-09-03 | 585-252-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PAVILION | NY |
| 2014-09-03 | 585-257-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HOLCOMB | NY |
| 2014-09-03 | 585-280-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WEBSTER | NY |
| 2014-09-03 | 585-308-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LE ROY | NY |
| 2014-09-03 | 585-358-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HENRIETTA | NY |
| 2014-09-03 | 585-366-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HILTON | NY |
| 2014-09-03 | 585-367-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HEMLOCK | NY |
| 2014-09-03 | 585-382-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEICESTER | NY |
| 2014-09-03 | 585-384-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COHOCTON | NY |
| 2014-09-03 | 585-431-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BROCKPORT | NY |
| 2014-09-03 | 585-432-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DANSVILLE | NY |
| 2014-09-03 | 585-433-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VICTOR | NY |
| 2014-09-03 | 585-446-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | W WEBSTER | NY |
| 2014-09-03 | 585-468-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NUNDA | NY |
| 2014-09-03 | 585-476-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DALTON | NY |
| 2014-09-03 | 585-488-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPENCERPT | NY |
| 2014-09-03 | 585-493-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CASTILE | NY |
| 2014-09-03 | 585-497-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HONEOYEFLS | NY |
| 2014-09-03 | 585-534-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ATLANTA | NY |
| 2014-09-03 | 585-558-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WARSAW | NY |
| 2014-09-03 | 585-632-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BERGEN | NY |
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.