NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026
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 845
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-04-27 | 845-648-4XXX | 4000–4999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MIDDLETOWN | NY |
| 2009-07-23 | 845-500-4XXX | 4000–4999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MONROE | NY |
| 2006-10-06 | 845-524-2XXX | 2000–2999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | PINE BUSH | NY |
| 2006-10-02 | 845-572-6XXX | 6000–6999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | CHESTER | NY |
| 2006-10-02 | 845-769-3XXX | 3000–3999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MONTGOMERY | NY |
| 2006-03-15 | 845-266-1XXX | 1000–1999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | CLINTONCOR | NY |
| 2005-11-02 | 845-832-5XXX | 5000–5999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | WINGDALE | NY |
| 2005-04-15 | 845-776-2XXX | 2000–2999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MONROE | NY |
| 2005-04-13 | 845-724-9XXX | 9000–9999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | NORTHCLOVE | NY |
| 2005-04-08 | 845-440-9XXX | 9000–9999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | BEACON | NY |
| 2005-04-07 | 845-775-2XXX | 2000–2999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MIDDLETOWN | NY |
| 2005-03-09 | 845-360-4XXX | 4000–4999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | GOSHEN | NY |
| 2005-02-22 | 845-233-7XXX | 7000–7999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | HYDE PARK | NY |
| 2004-10-27 | 845-458-3XXX | 3000–3999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | CORNWALL | NY |
| 2004-10-27 | 845-633-7XXX | 7000–7999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | NEW PALTZ | NY |
| 2004-10-27 | 845-701-4XXX | 4000–4999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | MONTICELLO | NY |
| 2001-10-25 | 845-296-5XXX | 5000–5999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | WAPIGRSFLS | NY |
| 2001-10-18 | 845-417-0XXX | 0000–0999 | Assigned | FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY | 2475 | KINGSTON | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.