NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 720-981 | not yet reported which blocks → | QWEST CORPORATION | 9636 | DENVER | CO |
| — | 720-982 | 0XXX1XXX2XXX which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 720-984 | 0XXX1XXX2XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 720-985 | 0XXX1XXX2XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 720-987 | 0XXX1XXX2XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 720-988 | 1XXX2XXX which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 720-989 | 0XXX1XXX2XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| — | 724-202 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | NEW CASTLE | PA |
| — | 724-203 | 2XXX3XXX4XXX6XXX7XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | ALIQUIPPA | PA |
| — | 724-204 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | MTPLEASANT | PA |
| — | 724-206 | 3XXX5XXX6XXX8XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | WASHINGTON | PA |
| — | 724-207 | 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | WASHINGTON | PA |
| — | 724-208 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNIONTOWN | PA |
| — | 724-209 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | AVELLA | PA |
| — | 724-210 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | XXXXXXXXXX | PA |
| — | 724-211 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 724-212 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | NEWKNSNGTN | PA |
| — | 724-213 | 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | IMPERIAL | PA |
| — | 724-214 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | BUTLER | PA |
| — | 724-216 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | GREENSBURG | PA |
| — | 724-218 | 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | IMPERIAL | PA |
| — | 724-219 | 3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | GREENSBURG | PA |
| — | 724-222 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-223 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-224 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | TARENTUM | PA |
| — | 724-225 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-226 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | TARENTUM | PA |
| — | 724-228 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-229 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-230 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | TARENTUM | PA |
| — | 724-235 | 0XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWFLORNCE | PA |
| — | 724-238 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | LIGONIER | PA |
| — | 724-239 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF PENNSYLVANIA CO | 0145 | BENTLEYVL | PA |
| — | 724-240 | 0XXX3XXX6XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | AMBRIDGE | PA |
| — | 724-241 | 0XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BADEN | PA |
| — | 724-242 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | BADEN | PA |
| — | 724-243 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | BELLEVRNON | PA |
| — | 724-244 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | GREENSBURG | PA |
| — | 724-245 | 0XXX1XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW SALEM | PA |
| — | 724-246 | 3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | REPUBLIC | PA |
| — | 724-247 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BELLEVRNON | PA |
| — | 724-248 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | BLACK LICK | PA |
| — | 724-250 | 0XXX1XXX8XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | WASHINGTON | PA |
| — | 724-251 | 1XXX3XXX5XXX6XXX8XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | AMBRIDGE | PA |
| — | 724-253 | 1XXX6XXX7XXX8XXX · 3 holders which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | SHEAKLEYVL | PA |
| — | 724-254 | 3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | CLYMER | PA |
| — | 724-255 | 6XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| — | 724-258 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MONONGAHLA | PA |
| — | 724-260 | 1XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | MCMURRAY | PA |
| — | 724-263 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.