NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026
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 |
|---|---|---|---|---|---|---|
| 2009-03-24 | 570-615 | 0–9 XXXwhole prefix which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MT POCONO | PA |
| 2007-10-24 | 570-957 | 0–9 XXXwhole prefix which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MT POCONO | PA |
| 2001-06-21 | 570-284 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DANVILLE | PA |
| 2001-05-21 | 570-221 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ELYSBURG | PA |
| 2001-05-21 | 570-232 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHENANDOAH | PA |
| 2001-05-21 | 570-428 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MILTON | PA |
| 2001-05-21 | 570-484 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | LOCK HAVEN | PA |
| — | 570-200 | 5XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILKSBARRE | PA |
| — | 570-210 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | XXXXXXXXXX | PA |
| — | 570-214 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DANVILLE | PA |
| — | 570-223 | 3XXX4XXX5XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | STROUDSBG | PA |
| — | 570-226 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | HAWLEY | PA |
| — | 570-251 | 0XXX1XXX2XXX5XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | HONESDALE | PA |
| — | 570-253 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | HONESDALE | PA |
| — | 570-271 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DANVILLE | PA |
| — | 570-275 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DANVILLE | PA |
| — | 570-276 | 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | GIRARDVL | PA |
| — | 570-277 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWPHLDLPH | PA |
| — | 570-281 | 0XXX2XXX3XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | CARBONDALE | PA |
| — | 570-282 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | CARBONDALE | PA |
| — | 570-283 | 7XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | KINGSTON | PA |
| — | 570-286 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SUNBURY | PA |
| — | 570-287 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | KINGSTON | PA |
| — | 570-288 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | KINGSTON | PA |
| — | 570-320 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-321 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-322 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-323 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-325 | 1XXX6XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | JIM THORPE | PA |
| — | 570-326 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-327 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-329 | 6XXX7XXX8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-330 | 4XXX6XXX7XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-331 | 1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | KINGSTON | PA |
| — | 570-339 | 7XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MT CARMEL | PA |
| — | 570-340 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-341 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-342 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-343 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-344 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-346 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-347 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-348 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-351 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SCRANTON | PA |
| — | 570-356 | 0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | CATAWISSA | PA |
| — | 570-366 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ORWIGSBURG | PA |
| — | 570-368 | 0XXX6XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WILLIAMSPT | PA |
| — | 570-373 | 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | KULPMONT | PA |
| — | 570-380 | 0XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | BLOOMSBURG | PA |
| — | 570-383 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | OLYPHANT | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.