NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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, last 30 days
New assignments by month
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Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 412-349 | 3XXX5XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | PTGSBNZN22 | PA |
| — | 412-350 | 8XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-351 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON4 | PA |
| — | 412-352 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| — | 412-355 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-358 | 0XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN17 | PA |
| — | 412-359 | 0XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-361 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON8 | PA |
| — | 412-362 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON8 | PA |
| — | 412-363 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON8 | PA |
| — | 412-364 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN17 | PA |
| — | 412-365 | 4XXX5XXX8XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON8 | PA |
| — | 412-366 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN17 | PA |
| — | 412-367 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN17 | PA |
| — | 412-369 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN17 | PA |
| — | 412-370 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| — | 412-371 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON4 | PA |
| — | 412-372 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN22 | PA |
| — | 412-373 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN22 | PA |
| — | 412-374 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN22 | PA |
| — | 412-375 | 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| — | 412-376 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN22 | PA |
| — | 412-378 | 4XXX5XXX7XXX8XXX which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | PTGSBNZN22 | PA |
| — | 412-380 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN22 | PA |
| — | 412-381 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-382 | 8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ELIZABETH | PA |
| — | 412-383 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-384 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ELIZABETH | PA |
| — | 412-385 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN10 | PA |
| — | 412-386 | 0XXX1XXX2XXX3XXX7XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN11 | PA |
| — | 412-387 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ELIZABETH | PA |
| — | 412-388 | 2XXX4XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON6 | PA |
| — | 412-389 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-390 | 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-391 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-392 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-393 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-394 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-395 | not yet reported which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| — | 412-396 | 0XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-397 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN15 | PA |
| — | 412-398 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-399 | 0XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON5 | PA |
| — | 412-400 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-401 | none assigned yet which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON5 | PA |
| — | 412-402 | 8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-404 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON8 | PA |
| — | 412-405 | 1XXX2XXX3XXX4XXX6XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | ELIZABETH | PA |
| — | 412-406 | 2XXX3XXX5XXX6XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN19 | PA |
| — | 412-407 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON3 | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.