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 |
|---|---|---|---|---|---|---|
| 2012-12-20 | 208-800 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | NAMPA | ID |
| 2012-11-15 | 208-216 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BAYVIEW | ID |
| 2012-10-17 | 208-501 | 0–9 XXXall 10 · 6 holders which blocks → | NUSO, LLC | 551G | BOISE | ID |
| 2012-09-14 | 208-916 | 0–9 XXXall 10 · 3 holders which blocks → | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4321 | COERDALENE | ID |
| 2012-06-05 | 208-742 | 0–9 XXXall 10 · 6 holders which blocks → | CUSTER TELEPHONE BROADBAND SERVICES LLC - ID | 646G | SALMON | ID |
| 2012-05-18 | 208-889 | 0–9 XXXall 10 · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - ID | 808G | COERDALENE | ID |
| 2012-05-17 | 208-917 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - ID | 808G | BOISE | ID |
| 2012-02-21 | 208-780 | 0–9 XXXall 10 · 2 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| 2012-01-30 | 208-907 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | WEISER | ID |
| 2011-12-14 | 208-789 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2011-11-23 | 208-966 | 0–9 XXXall 10 · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | COERDALENE | ID |
| 2011-09-13 | 208-957 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2011-09-02 | 208-391 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2011-08-18 | 208-920 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANDPOINT | ID |
| 2011-06-03 | 208-901 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | BOISE | ID |
| 2011-05-10 | 208-918 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | BOISE | ID |
| 2011-04-21 | 208-719 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 TELECOM OF IDAHO, LLC - ID | 7511 | HAYDENLAKE | ID |
| 2011-03-16 | 208-995 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2011-02-24 | 208-956 | 0XXX9XXX · 2 holders which blocks → | ONVOY, LLC - ID | 689F | COERDALENE | ID |
| 2011-01-18 | 208-505 | 0–9 XXXall 10 · 6 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | NAMPA | ID |
| 2010-08-25 | 208-258 | 0–9 XXXall 10 · 6 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| 2010-01-04 | 208-909 | 0–9 XXXall 10 · 4 holders which blocks → | MILLENNIUM NETWORKS, LLC - ID | 022G | POCATELLO | ID |
| 2009-12-17 | 208-814 | 0–9 XXXwhole prefix which blocks → | PROJECT MUTUAL TEL. COOP. ASSN., INC. - ID | 3816 | TWIN FALLS | ID |
| 2009-11-30 | 208-815 | 0XXX7XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | MALAD | ID |
| 2009-10-07 | 208-261 | 0–9 XXXall 10 · 4 holders which blocks → | RED-BAN COMMUNICATIONS, LLC - ID | 704D | BURLEY | ID |
| 2009-09-15 | 208-615 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | NAMPA | ID |
| 2009-09-04 | 208-994 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2009-04-23 | 208-515 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2008-07-16 | 208-991 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | BOISE | ID |
| 2008-06-11 | 208-968 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2008-05-29 | 208-820 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | KAMIAH | ID |
| 2008-05-05 | 208-953 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | NEW PLYMTH | ID |
| 2008-02-13 | 208-954 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | BOISE | ID |
| 2008-01-22 | 208-570 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOISE | ID |
| 2007-10-17 | 208-473 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 TELECOM OF IDAHO, LLC - ID | 7511 | BOISE | ID |
| 2007-10-16 | 208-987 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - ID | 689F | PLUMERWRLY | ID |
| 2007-10-02 | 208-302 | 0–9 XXXwhole prefix which blocks → | QWEST CORPORATION | 9636 | BOISE | ID |
| 2007-05-11 | 208-965 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAMPA | ID |
| 2007-04-13 | 208-675 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | TYGEE VLY | ID |
| 2007-04-13 | 208-925 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | CRAIGMONT | ID |
| 2007-04-13 | 208-951 | 0XXX2XXX3XXX4XXX5XXX7XXX · 2 holders which blocks → | ONVOY, LLC - ID | 689F | EVERGREEN | ID |
| 2007-03-28 | 208-546 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | NAMPA | ID |
| 2007-03-19 | 208-572 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - ID | 689F | BURLEY | ID |
| 2007-01-12 | 208-943 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MT HOME | ID |
| 2006-09-13 | 208-492 | 0–9 XXXwhole prefix which blocks → | QWEST CORPORATION | 9636 | BOISE | ID |
| 2006-08-28 | 208-430 | 1XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | BURLEY | ID |
| 2006-08-23 | 208-751 | 7XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | TWIN FALLS | ID |
| 2006-07-07 | 208-936 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | NAMPA | ID |
| 2006-06-19 | 208-770 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF IDAHO, LLC - ID | 7511 | COERDALENE | ID |
| 2006-04-04 | 208-908 | 0–9 XXXall 10 · 4 holders 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.