NumberResearchRecent prefix assignments
0 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, all time — NPA 208
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2024-06-18 | 208-208 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | POST FALLS | ID |
| 2023-06-23 | 208-986 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2022-06-08 | 208-299 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | RURAL NETWORK SERVICES, INC. - ID | 3268 | WEISER | ID |
| 2021-05-24 | 208-671 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | MALTA | ID |
| 2021-03-29 | 208-849 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | MCCALL | ID |
| 2021-03-26 | 208-831 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BURLEY | ID |
| 2021-03-26 | 208-973 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | IDAHOFALLS | ID |
| 2021-03-08 | 208-579 | 0–9 XXXall 10 · 4 holders which blocks → | STRATUS NETWORKS | 495J | BOISE | ID |
| 2021-03-08 | 208-581 | 0–9 XXXall 10 · 4 holders which blocks → | STRATUS NETWORKS | 495J | GENESEE | ID |
| 2021-03-02 | 208-470 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - ID | 689F | RATHDRUM | ID |
| 2021-02-10 | 208-586 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | NAMPA | ID |
| 2021-01-21 | 208-592 | 1XXX which blocks → | MIDVALE TELEPHONE EXCHANGE, INC. | 2226 | MIDVALE | ID |
| 2021-01-21 | 208-594 | 1XXX which blocks → | MIDVALE TELEPHONE EXCHANGE, INC. | 2226 | STANLEY | ID |
| 2021-01-20 | 208-984 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - ID | 689F | LEWISTON | ID |
| 2021-01-11 | 208-905 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | COERDALENE | ID |
| 2020-12-16 | 208-872 | 0–9 XXXall 10 · 6 holders which blocks → | TDS METROCOM, LLC | 520K | BOISE | ID |
| 2020-10-21 | 208-563 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOISE | ID |
| 2020-08-28 | 208-617 | 0–9 XXXall 10 · 6 holders which blocks → | NUSO, LLC | 478J | BOISE | ID |
| 2020-08-28 | 208-998 | 0XXX1XXX6XXX7XXX · 2 holders which blocks → | NUSO, LLC | 478J | TYGEE VLY | ID |
| 2020-08-27 | 208-517 | 0–9 XXXall 10 · 3 holders which blocks → | NUSO, LLC | 478J | COTTONWOOD | ID |
| 2020-06-10 | 208-593 | 0–9 XXXall 10 · 5 holders which blocks → | HD CARRIER LLC | 321J | BOISE | ID |
| 2020-05-18 | 208-370 | 0–9 XXXall 10 · 6 holders which blocks → | CTC TELECOM, INC. | 4032 | BOISE | ID |
| 2020-03-24 | 208-992 | 0–9 XXXall 10 · 4 holders which blocks → | INTRADO COMMUNICATIONS, LLC | 815C | BOISE | ID |
| 2020-03-02 | 208-294 | 1XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | FRUITLAND | ID |
| 2020-02-05 | 208-296 | 0–9 XXXall 10 · 4 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | BOISE | ID |
| 2019-12-24 | 208-510 | 0–9 XXXall 10 · 5 holders which blocks → | PROJECT MUTUAL TEL. COOP. ASSN., INC. - ID | 3816 | BOISE | ID |
| 2019-12-19 | 208-281 | 0–9 XXXall 10 · 5 holders which blocks → | MILLENNIUM NETWORKS, LLC - ID | 022G | POCATELLO | ID |
| 2019-11-25 | 208-210 | 0–9 XXXall 10 · 4 holders which blocks → | TELNYX LLC | 073H | COERDALENE | ID |
| 2019-09-27 | 208-607 | 0–9 XXXall 10 · 6 holders which blocks → | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2019-08-29 | 208-551 | 0–9 XXXall 10 · 4 holders which blocks → | TDS METROCOM, LLC | 520K | COERDALENE | ID |
| 2019-07-17 | 208-491 | 0XXX2XXX · 2 holders which blocks → | COLUMBINE TELCO DBA SILVER STAR COMMUNICATIONS | 2214 | DRIGGS | ID |
| 2019-06-11 | 208-560 | 1XXX which blocks → | MUD LAKE TELEPHONE COOPERATIVE ASSOCIATION, INC. | 2227 | DUBOIS | ID |
| 2019-05-29 | 208-601 | 0XXX1XXX2XXX6XXX8XXX9XXX · 4 holders which blocks → | CSC WIRELESS, LLC | 425J | COERDALENE | ID |
| 2019-05-29 | 208-609 | 0–9 XXXall 10 · 4 holders which blocks → | CSC WIRELESS, LLC | 425J | BOISE | ID |
| 2019-05-23 | 208-203 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - ID | 689F | PARMA | ID |
| 2019-05-22 | 208-207 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | BOISE | ID |
| 2019-03-04 | 208-213 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - ID | 808G | ALBENI | ID |
| 2018-11-19 | 208-506 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2018-11-13 | 208-910 | 0–9 XXXall 10 · 2 holders which blocks → | VONAGE AMERICA LLC | 197D | NAMPA | ID |
| 2018-09-24 | 208-204 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | MELBA | ID |
| 2018-09-18 | 208-603 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | SANDPOINT | ID |
| 2018-07-06 | 208-923 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → | ONVOY, LLC - ID | 689F | GARDEN VLY | ID |
| 2018-07-06 | 208-974 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | HOMEDALE | ID |
| 2018-06-14 | 208-500 | 0–9 XXXall 10 · 6 holders which blocks → | VONAGE AMERICA LLC | 197D | COERDALENE | ID |
| 2018-05-25 | 208-804 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAPWAI | ID |
| 2018-03-20 | 208-913 | 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | KETCHUM | ID |
| 2018-02-01 | 208-202 | 0–9 XXXall 10 · 7 holders which blocks → | NUSO, LLC | 551G | BOISE | ID |
| 2017-10-19 | 208-616 | 0–9 XXXall 10 · 4 holders which blocks → | TELNYX LLC | 073H | BOISE | ID |
| 2017-06-06 | 208-927 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | MURTAUGH | ID |
| 2017-04-06 | 208-565 | 0–9 XXXall 10 · 5 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | NAMPA | ID |
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.