NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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 |
|---|---|---|---|---|---|---|
| — | 518-875 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | ESPERANCE | NY |
| — | 518-877 | 1XXX2XXX which blocks → | VERIZON NEW YORK, INC. | 9104 | JONESVILLE | NY |
| — | 518-882 | 0XXX2XXX3XXX4XXX7XXX8XXX · 3 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | GALWAY | NY |
| — | 518-884 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | BALLSTNSPA | NY |
| — | 518-885 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | BALLSTNSPA | NY |
| — | 518-890 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | MARIAVILLE | NY |
| — | 518-891 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | SARANAC LK | NY |
| — | 518-893 | 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | GREENFLCTR | NY |
| — | 518-895 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | DELANSON | NY |
| — | 518-897 | 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | SARANAC LK | NY |
| — | 518-899 | 0XXX8XXX which blocks → | VERIZON NEW YORK, INC. | 9104 | ROUND LAKE | NY |
| — | 518-910 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-926 | 0XXX8XXX9XXX which blocks → | VERIZON NEW YORK, INC. | 9104 | GLENSFALLS | NY |
| — | 518-927 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-942 | 0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | MINEVILLE | NY |
| — | 518-943 | 8XXX which blocks → | VERIZON NEW YORK, INC. | 9104 | CATSKILL | NY |
| — | 518-945 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | ATHENS | NY |
| — | 518-963 | 0XXX1XXX2XXX3XXX5XXX6XXX9XXX · 7 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | WILLSBORO | NY |
| — | 518-966 | 0XXX1XXX2XXX3XXX6XXX7XXX9XXX · 5 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | GREENVILLE | NY |
| — | 518-979 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-985 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-989 | 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON NEW YORK, INC. | 9104 | LEXINGTON | NY |
| — | 518-996 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-997 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
| — | 518-998 | not yet reported which blocks → | VERIZON NEW YORK, INC. | 9104 | XXXXXXXXXX | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.