NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, last 30 days — 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 |
|---|---|---|---|---|---|---|---|
| 2000-06-08 | 585-486-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | HENRIETTA | NY |
| 2000-06-06 | 585-293-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | CHURCHVL | NY |
| 2000-06-06 | 585-346-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | LIVONIA | NY |
| 2000-06-06 | 585-494-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | BERGEN | NY |
| 2000-05-15 | 585-596-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | WELLSVILLE | NY |
| 2000-04-07 | 585-217-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | WEBSTER | NY |
| 2000-04-07 | 585-226-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | AVON | NY |
| 2000-04-07 | 585-347-1XXX | 1000–1999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | W WEBSTER | NY |
| 2000-04-07 | 585-533-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | RUSH | NY |
| 2000-04-07 | 585-869-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | VICTOR | NY |
| 2000-04-06 | 585-216-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WEBSTER | NY |
| 2000-04-06 | 585-226-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | AVON | NY |
| 2000-04-06 | 585-243-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | GENESEO | NY |
| 2000-04-06 | 585-321-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | HENRIETTA | NY |
| 2000-04-06 | 585-347-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | W WEBSTER | NY |
| 2000-04-06 | 585-398-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | VICTOR | NY |
| 2000-04-06 | 585-419-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | EROCHESTER | NY |
| 2000-04-06 | 585-533-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | RUSH | NY |
| 2000-04-06 | 585-538-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | CALEDONIA | NY |
| 2000-04-06 | 585-582-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | HONEOYEFLS | NY |
| 2000-04-06 | 585-582-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | HONEOYEFLS | NY |
| 2000-04-06 | 585-598-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | FAIRPORT | NY |
| 2000-04-06 | 585-612-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | DANSVILLE | NY |
| 2000-04-06 | 585-919-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | CANANDAGUA | NY |
| 2000-04-06 | 585-919-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | CANANDAGUA | NY |
| 2000-04-06 | 585-991-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | GENESEO | NY |
| 2000-04-05 | 585-421-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | FAIRPORT | NY |
| 2000-04-05 | 585-431-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | BROCKPORT | NY |
| 2000-04-05 | 585-815-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | BATAVIA | NY |
| 2000-04-04 | 585-419-0XXX | 0000–0999 | Assigned | FRONTIER TELEPHONE OF ROCHESTER, INC. | 0121 | EROCHESTER | NY |
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.