NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 208
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 |
|---|---|---|---|---|---|---|
| — | 208-224 | not yet reported which blocks → | INLAND TEL CO | 2423 | LEON | ID |
| — | 208-225 | 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | QWEST CORPORATION | 9636 | TYGEE VLY | ID |
| — | 208-226 | 0XXX4XXX6XXX8XXX · 2 holders which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-227 | 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | QWEST CORPORATION | 9636 | IDAHOFALLS | ID |
| — | 208-228 | 0XXX1XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | QWEST CORPORATION | 9636 | RIGBY | ID |
| — | 208-229 | none assigned yet which blocks → | MILLENNIUM NETWORKS, LLC - ID | 022G | BOISE | ID |
| — | 208-230 | 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | PAYETTE | ID |
| — | 208-231 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | SETTERS | ID |
| — | 208-232 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-233 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-234 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-235 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-236 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-237 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-238 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-239 | not yet reported which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-240 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-241 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-242 | 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-244 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-245 | not yet reported which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | ST MARIES | ID |
| — | 208-246 | 9XXX which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| — | 208-247 | not yet reported which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| — | 208-248 | not yet reported which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| — | 208-249 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAMPA | ID |
| — | 208-250 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAMPA | ID |
| — | 208-251 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-252 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-253 | none assigned yet which blocks → | CAMBRIDGE TELEPHONE COMPANY | 2215 | COUNCIL | ID |
| — | 208-254 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | QWEST CORPORATION | 9636 | POCATELLO | ID |
| — | 208-255 | 0XXX6XXX8XXX9XXX which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | SANDPOINT | ID |
| — | 208-256 | none assigned yet which blocks → | CAMBRIDGE TELEPHONE COMPANY | 2215 | INDIAN VLY | ID |
| — | 208-257 | not yet reported which blocks → | CAMBRIDGE TELEPHONE COMPANY | 2215 | CAMBRIDGE | ID |
| — | 208-259 | none assigned yet which blocks → | CAMBRIDGE TELEPHONE COMPANY | 2215 | LOWMAN | ID |
| — | 208-260 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | RUPERT | ID |
| — | 208-263 | not yet reported which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | SANDPOINT | ID |
| — | 208-264 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | HOPE | ID |
| — | 208-265 | not yet reported which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | SANDPOINT | ID |
| — | 208-266 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | CLARK FORK | ID |
| — | 208-267 | not yet reported which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | BONERSFRRY | ID |
| — | 208-268 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | EVERGREEN | ID |
| — | 208-269 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-270 | 3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | IRWIN | ID |
| — | 208-271 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - ID | 689F | MCCALL | ID |
| — | 208-273 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | ROCK CREEK | ID |
| — | 208-274 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | BLUEBELL | ID |
| — | 208-275 | 9XXX which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| — | 208-276 | 0XXX1XXX9XXX · 3 holders which blocks → | POTLATCH TEL. CO., INC. | 2230 | JULIAETTA | ID |
| — | 208-278 | 1XXX2XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → | QWEST CORPORATION | 9636 | NEW PLYMTH | ID |
| — | 208-279 | not yet reported which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.