NumberResearchRecent thousands-block assignments
5 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, last 30 days — NPA 585
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-07-26 | 585-662-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EROCHESTER | NY |
| 2006-07-12 | 585-512-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | ROCHESTER | NY |
| 2006-07-06 | 585-402-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-07-06 | 585-402-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-07-06 | 585-402-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-07-06 | 585-590-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ALBION | NY |
| 2006-06-14 | 585-698-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-06-12 | 585-322-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | BLISS | NY |
| 2006-06-06 | 585-402-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-06-06 | 585-402-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-06-06 | 585-813-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BATAVIA | NY |
| 2006-05-30 | 585-200-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | EROCHESTER | NY |
| 2006-05-23 | 585-690-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-05-19 | 585-487-1XXX | 1000–1999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | HENRIETTA | NY |
| 2006-05-18 | 585-496-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | CHAFFEE | NY |
| 2006-05-16 | 585-662-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EROCHESTER | NY |
| 2006-05-12 | 585-322-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BLISS | NY |
| 2006-05-12 | 585-519-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | GENESEO | NY |
| 2006-05-12 | 585-545-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WEBSTER | NY |
| 2006-05-12 | 585-627-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2006-05-12 | 585-730-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-05-02 | 585-785-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2006-04-21 | 585-598-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | FAIRPORT | NY |
| 2006-04-19 | 585-730-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2006-04-14 | 585-730-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2006-04-14 | 585-730-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2006-04-14 | 585-857-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-04-07 | 585-662-6XXX | 6000–6999 | Assigned | FRONTIER TELEPHONE OF ROCHESTER, INC. | 0121 | EROCHESTER | NY |
| 2006-04-07 | 585-730-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-04-07 | 585-730-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-04-07 | 585-813-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BATAVIA | NY |
| 2006-03-09 | 585-402-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-03-07 | 585-563-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ROCHESTER | NY |
| 2006-03-07 | 585-563-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ROCHESTER | NY |
| 2006-03-03 | 585-490-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-03-03 | 585-730-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-03-01 | 585-457-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | JAVA | NY |
| 2006-03-01 | 585-708-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ATTICA | NY |
| 2006-02-15 | 585-638-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | HOLLEY | NY |
| 2006-02-08 | 585-730-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2006-02-06 | 585-322-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BLISS | NY |
| 2006-02-06 | 585-490-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-02-06 | 585-490-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2006-02-06 | 585-519-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | GENESEO | NY |
| 2006-02-03 | 585-643-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | EROCHESTER | NY |
| 2006-02-03 | 585-643-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | EROCHESTER | NY |
| 2006-01-30 | 585-219-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BATAVIA | NY |
| 2006-01-12 | 585-200-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | EROCHESTER | NY |
| 2006-01-12 | 585-300-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BATAVIA | NY |
| 2006-01-12 | 585-905-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CANANDAGUA | 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.