NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-10-22 | 845-539 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | LIBERTY | NY |
| 2018-02-15 | 845-410 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | HIGH FALLS | NY |
| 2016-02-29 | 845-599 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | GRAHAMSVL | NY |
| 2015-12-09 | 845-203 | 0–9 XXXall 10 · 3 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | CALLICOON | NY |
| 2014-10-28 | 845-272 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | ELLENVILLE | NY |
| 2014-09-23 | 845-762 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | NEWBURGH | NY |
| 2014-04-28 | 845-748 | 0XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | POUGHKEPSI | NY |
| 2013-04-04 | 845-286 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | PATTERSON | NY |
| 2012-04-18 | 845-301 | 0–9 XXXwhole prefix which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | SUFFERN | NY |
| 2012-02-01 | 845-767 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | CONGERS | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.