NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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.
Most active assignees, all time — NPA 570
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2008-06-24 | 570-887 | 0–9 XXXwhole prefix which blocks → | VERIZON NORTH, INC. - PA | 0169 | SAYRE | PA |
| — | 570-224 | 1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | GALILEE | PA |
| — | 570-254 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 7 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | CHAPMAN LK | PA |
| — | 570-296 | not yet reported which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | MILFORD | PA |
| — | 570-345 | 5XXX7XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | PINE GROVE | PA |
| — | 570-365 | 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | MTPLSANTML | PA |
| — | 570-372 | 6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | SELINSGRV | PA |
| — | 570-374 | not yet reported which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | SELINSGRV | PA |
| — | 570-386 | 0XXX9XXX · 2 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | MANTZVILLE | PA |
| — | 570-409 | 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | MILFORD | PA |
| — | 570-433 | 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | LOYALSOCK | PA |
| — | 570-435 | 1XXX7XXX8XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | LOYALSOCK | PA |
| — | 570-478 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | LOYALSOCK | PA |
| — | 570-491 | 0XXX1XXX3XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | MATAMORAS | PA |
| — | 570-539 | 1XXX5XXX7XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | MTPLSANTML | PA |
| — | 570-559 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | SHOHOLA | PA |
| — | 570-634 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | BROOKSIDE | PA |
| — | 570-658 | 0XXX1XXX5XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | BEAVER SPG | PA |
| — | 570-686 | 0XXX6XXX7XXX8XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | MILFORD | PA |
| — | 570-729 | 2XXX3XXX4XXX5XXX6XXX9XXX · 6 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | BEACH LAKE | PA |
| — | 570-739 | 5XXX6XXX7XXX8XXX · 4 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | FRIEDENSBG | PA |
| — | 570-743 | 9XXX which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | SELINSGRV | PA |
| — | 570-754 | 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | AUBURN | PA |
| — | 570-828 | 0XXX3XXX4XXX5XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | DINGMAFRRY | PA |
| — | 570-837 | 6XXX9XXX · 2 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | MIDDLEBURG | PA |
| — | 570-882 | 2XXX3XXX4XXX5XXX which blocks → | VERIZON NORTH, INC. - PA | 0169 | SAYRE | PA |
| — | 570-884 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | SELINSGRV | PA |
| — | 570-886 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA | 0169 | SAYRE | PA |
| — | 570-888 | not yet reported which blocks → | VERIZON NORTH, INC. - PA | 0169 | SAYRE | PA |
| — | 570-943 | 0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | MCKEANSBG | PA |
| — | 570-995 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | TROUT RUN | PA |
| — | 570-998 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | TROUT RUN | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.