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
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2002-04-09 | 208-944 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | TWIN FALLS | ID |
| 2002-04-04 | 208-643 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BLACKFOOT | ID |
| 2002-04-04 | 208-649 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 TELECOM OF IDAHO, LLC - ID | 7511 | CALDWELL | ID |
| 2002-04-04 | 208-696 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MT HOME | ID |
| 2002-04-04 | 208-697 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | NAMPA | ID |
| 2002-04-03 | 208-808 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | BURLEY | ID |
| 2002-03-28 | 208-757 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2002-03-28 | 208-760 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | POCATELLO | ID |
| 2002-03-28 | 208-919 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2002-03-28 | 208-948 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | T-MOBILE USA, INC. | 6529 | TWIN FALLS | ID |
| 2002-02-13 | 208-709 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | IDAHOFALLS | ID |
| 2001-11-15 | 208-703 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2001-11-02 | 208-608 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2001-10-04 | 208-795 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | CALDWELL | ID |
| 2001-09-12 | 208-794 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2001-09-10 | 208-797 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | COERDALENE | ID |
| 2001-08-31 | 208-353 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2001-08-31 | 208-553 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | LEWISTON | ID |
| 2001-08-23 | 208-712 | 3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | RATHDRUM | ID |
| 2001-08-17 | 208-219 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2001-08-13 | 208-262 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | POST FALLS | ID |
| 2001-07-11 | 208-496 | none assigned yet which blocks → | QWEST CORPORATION | 9636 | IDAHOFALLS | ID |
| 2001-05-17 | 208-713 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2001-04-10 | 208-243 | 3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2001-04-03 | 208-403 | 0XXX which blocks → | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2001-04-03 | 208-404 | 0XXX2XXX5XXX7XXX which blocks → | METROPCS, INC. | 5562 | TWIN FALLS | ID |
| 2001-04-03 | 208-405 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | T-MOBILE USA, INC. | 6529 | PAYETTE | ID |
| 2001-04-03 | 208-406 | 0XXX2XXX5XXX · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | POCATELLO | ID |
| 2001-03-27 | 208-612 | not yet reported which blocks → | BLACKFOOT COMMUNICATIONS, INC. - MT | 7870 | IDAHOFALLS | ID |
| 2001-03-23 | 208-358 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | TWIN FALLS | ID |
| 2001-03-21 | 208-339 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| 2001-03-21 | 208-450 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | T-MOBILE USA, INC. | 6529 | KETCHUM | ID |
| 2001-03-08 | 208-413 | 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEWISTON | ID |
| 2001-03-08 | 208-604 | 9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | BLACKFOOT | ID |
| 2001-03-08 | 208-716 | 8XXX9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | IDAHOFALLS | ID |
| 2001-02-22 | 208-573 | 8XXX which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2001-02-20 | 208-407 | 4XXX6XXX8XXX which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2001-02-06 | 208-704 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COERDALENE | ID |
| 2001-02-05 | 208-706 | not yet reported which blocks → | QWEST CORPORATION | 9636 | BOISE | ID |
| 2001-01-29 | 208-566 | none assigned yet which blocks → | CAMBRIDGE TELEPHONE COMPANY, INC. DBA CTC TELECOM | 5221 | NU ACRES | ID |
| — | 208-200 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | IDAHOFALLS | ID |
| — | 208-206 | 3XXX4XXX6XXX7XXX8XXX which blocks → | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| — | 208-209 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | HAYDENLAKE | ID |
| — | 208-211 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | ID |
| — | 208-212 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | TWIN FALLS | ID |
| — | 208-214 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TELNYX LLC | 073H | HARRISON | ID |
| — | 208-220 | 3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-221 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | ID |
| — | 208-222 | not yet reported which blocks → | MIDVALE TELEPHONE EXCHANGE, INC. | 2226 | LAKEVIEW | ID |
| — | 208-223 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | POCATELLO | 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.