NumberResearchRecent prefix assignments
372 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
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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 |
|---|---|---|---|---|---|---|
| — | 570-601 | 2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | CTSI, INC. - PA | 7513 | WILLIAMSPT | PA |
| — | 570-602 | not yet reported which blocks → | CTSI, INC. - PA | 7513 | PITTSTON | PA |
| — | 570-603 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PITTSTON | PA |
| — | 570-604 | not yet reported which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | SCRANTON | PA |
| — | 570-606 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WILKSBARRE | PA |
| — | 570-608 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | CORE COMMUNICATIONS, INC. - PA | 3806 | SWEET VLY | PA |
| — | 570-609 | 0XXX1XXX2XXX3XXX5XXX9XXX · 5 holders which blocks → | ONVOY, LLC - PA | 547E | WYOMING | PA |
| — | 570-611 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 570-612 | 0–9 XXXall 10 · 4 holders which blocks → | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| — | 570-613 | 2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → | CTSI, INC. - PA | 7513 | WYOMING | PA |
| — | 570-614 | 3XXX4XXX6XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | SCRANTON | PA |
| — | 570-616 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - PA | 547E | HONESDALE | PA |
| — | 570-617 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | POTTSVILLE | PA |
| — | 570-619 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | STROUDSBG | PA |
| — | 570-620 | none assigned yet which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | STROUDSBG | PA |
| — | 570-621 | 8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | POTTSVILLE | PA |
| — | 570-622 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | POTTSVILLE | PA |
| — | 570-623 | 1XXX6XXX7XXX8XXX · 4 holders which blocks → | CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY | 0096 | LITTLE MDW | PA |
| — | 570-624 | 0XXX1XXX2XXX4XXX6XXX8XXX9XXX · 7 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | POTTSVILLE | PA |
| — | 570-628 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | POTTSVILLE | PA |
| — | 570-629 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | STROUDSBG | PA |
| — | 570-631 | not yet reported which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | DALLAS | PA |
| — | 570-634 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | BROOKSIDE | PA |
| — | 570-635 | not yet reported which blocks → | HANCOCK TEL. CO. | 0099 | WINTERDALE | PA |
| — | 570-636 | 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | FREELAND | PA |
| — | 570-638 | 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | BLOSSBURG | PA |
| — | 570-639 | 6XXX which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | HARVEYS LK | PA |
| — | 570-640 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | POTTSVILLE | PA |
| — | 570-641 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | POTTSVILLE | PA |
| — | 570-642 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PLEASANTMT | PA |
| — | 570-643 | not yet reported which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | POCONOLAKE | PA |
| — | 570-644 | 8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHAMOKIN | PA |
| — | 570-645 | not yet reported which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | LANSFORD | PA |
| — | 570-646 | not yet reported which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | POCONOLAKE | PA |
| — | 570-647 | 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | HONESDALE | PA |
| — | 570-648 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHAMOKIN | PA |
| — | 570-649 | 1XXX3XXX4XXX7XXX8XXX · 4 holders which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | TURBOTVL | PA |
| — | 570-650 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PITTSTON | PA |
| — | 570-651 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | WILLIAMSPT | PA |
| — | 570-654 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PITTSTON | PA |
| — | 570-655 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PITTSTON | PA |
| — | 570-658 | 0XXX1XXX5XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | BEAVER SPG | PA |
| — | 570-659 | 1XXX2XXX6XXX7XXX · 2 holders which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | COVINGTON | PA |
| — | 570-660 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | LOCK HAVEN | PA |
| — | 570-662 | 5XXX which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | MANSFIELD | PA |
| — | 570-663 | 1XXX5XXX6XXX7XXX · 3 holders which blocks → | CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY | 0096 | QUAKERLAKE | PA |
| — | 570-668 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | TAMAQUA | PA |
| — | 570-669 | 1XXX3XXX7XXX8XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NESQUHONNG | PA |
| — | 570-670 | not yet reported which blocks → | SPOK, INC. | 6630 | SCRANTON | PA |
| — | 570-672 | 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ELYSBURG | 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.