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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-02-08 | 208-605 | 0–9 XXXall 10 · 5 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| 2016-11-07 | 208-803 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | BOISE | ID |
| 2016-08-03 | 208-813 | 0–9 XXXall 10 · 7 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | BOISE | ID |
| 2016-05-09 | 208-701 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | IDAHOFALLS | ID |
| 2016-05-05 | 208-519 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2016-05-05 | 208-802 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | KOOSKIA | ID |
| 2016-04-08 | 208-205 | 0–9 XXXall 10 · 3 holders which blocks → | QWEST CORPORATION | 9636 | NAMPA | ID |
| 2016-03-02 | 208-912 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2016-02-18 | 208-504 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - ID | 689F | CALDWELL | ID |
| 2015-12-24 | 208-516 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | IDAHOFALLS | ID |
| 2015-12-24 | 208-613 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FILER | ID |
| 2015-12-08 | 208-509 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-01 | 208-508 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - ID | 689F | RATHDRUM | ID |
| 2015-11-19 | 208-314 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2015-10-23 | 208-729 | 0–9 XXXall 10 · 5 holders which blocks → | FARMERS MUTUAL TELECOM INC. | 857G | NEW PLYMTH | ID |
| 2015-10-23 | 208-812 | 0–9 XXXall 10 · 8 holders which blocks → | FARMERS MUTUAL TELECOM INC. | 857G | PAYETTE | ID |
| 2015-09-28 | 208-810 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-08-21 | 208-513 | 0–9 XXXall 10 · 6 holders which blocks → | AIRUS, INC. - ID | 579H | BOISE | ID |
| 2015-07-30 | 208-518 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAYDENLAKE | ID |
| 2015-07-24 | 208-217 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | SANDPOINT | ID |
| 2015-06-29 | 208-807 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2015-06-23 | 208-576 | 0–9 XXXall 10 · 5 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| 2015-06-04 | 208-606 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | NAMPA | ID |
| 2015-04-08 | 208-718 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | WEISER | ID |
| 2015-03-23 | 208-600 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2015-03-13 | 208-900 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2015-02-17 | 208-970 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | IDAHOFALLS | ID |
| 2015-01-23 | 208-817 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | EMMETT | ID |
| 2015-01-21 | 208-488 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | BOISE | ID |
| 2015-01-13 | 208-809 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2014-11-07 | 208-981 | 0–9 XXXall 10 · 7 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | POST FALLS | ID |
| 2014-10-15 | 208-805 | 0–9 XXXall 10 · 3 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7865 | BOISE | ID |
| 2014-10-01 | 208-997 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MOSCOW | ID |
| 2014-09-25 | 208-996 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | BOISE | ID |
| 2014-09-01 | 208-960 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAMPA | ID |
| 2014-08-18 | 208-971 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2014-08-11 | 208-614 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 TELECOM OF IDAHO, LLC - ID | 7511 | CALDWELL | ID |
| 2014-06-27 | 208-218 | 0–9 XXXall 10 · 5 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRUNEAU | ID |
| 2014-06-27 | 208-990 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRAND VIEW | ID |
| 2014-06-06 | 208-930 | 0–9 XXXall 10 · 2 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | COERDALENE | ID |
| 2014-03-11 | 208-985 | 0–9 XXXall 10 · 6 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | BOISE | ID |
| 2014-02-06 | 208-408 | 0–9 XXXall 10 · 6 holders which blocks → | CTC TELECOM, INC. | 4032 | CASCADE | ID |
| 2013-12-12 | 208-494 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GRANGEVL | ID |
| 2013-12-09 | 208-999 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2013-08-22 | 208-982 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2013-08-12 | 208-972 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | BOISE | ID |
| 2013-06-07 | 208-502 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | COTTONWOOD | ID |
| 2013-05-31 | 208-400 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | OROFINO | ID |
| 2013-03-08 | 208-967 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → | NUSO, LLC | 551G | COERDALENE | ID |
| 2013-02-28 | 208-497 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | IDAHOFALLS | 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.