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 |
|---|---|---|---|---|---|---|
| 2016-08-08 | 518-804 | 0–9 XXXall 10 · 7 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | GLENSFALLS | NY |
| 2016-05-02 | 518-715 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | GALWAY | NY |
| 2016-04-08 | 518-919 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | PUTNAM | NY |
| 2016-03-18 | 518-508 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | FREEHOLD | NY |
| 2016-03-18 | 518-510 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | PITTSTOWN | NY |
| 2016-03-18 | 518-513 | 0–9 XXXall 10 · 7 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | VOORHEESVL | NY |
| 2016-03-09 | 518-666 | 0–9 XXXall 10 · 7 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | STREGISFLS | NY |
| 2016-03-09 | 518-990 | 0–9 XXXall 10 · 7 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | MOIRA | NY |
| 2016-02-11 | 518-509 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | ROUND LAKE | NY |
| 2015-12-21 | 518-933 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | SCHUYLERVL | NY |
| 2015-12-18 | 518-609 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | KATTSKL BY | NY |
| 2015-12-18 | 518-809 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | KEENE | NY |
| 2015-12-09 | 518-849 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | DANNEMORA | NY |
| 2015-12-09 | 518-940 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | CHATEAUGAY | NY |
| 2015-05-05 | 518-896 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | MARIAVILLE | NY |
| 2014-04-14 | 518-730 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | ALBANY | 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.