Recent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 586-976 | not yet reported which blocks → | MI | |||
| — | 586-977 | not yet reported which blocks → | MICHIGAN BELL TEL CO | 9323 | WARREN | MI |
| — | 586-978 | not yet reported which blocks → | MICHIGAN BELL TEL CO | 9323 | WARREN | MI |
| — | 586-979 | not yet reported which blocks → | MICHIGAN BELL TEL CO | 9323 | WARREN | MI |
| — | 586-980 | 6XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | MT CLEMENS | MI |
| — | 586-981 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | WARREN | MI |
| — | 586-983 | 6XXX8XXX9XXX · 3 holders which blocks → | MICHIGAN BELL TEL CO | 9323 | WARREN | MI |
| — | 586-986 | not yet reported which blocks → | MICHIGAN BELL TEL CO | 9323 | CENTERLINE | MI |
| — | 586-988 | not yet reported which blocks → | MI | |||
| — | 586-989 | not yet reported which blocks → | MI | |||
| — | 586-994 | 7XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARREN | MI |
| — | 586-995 | 7XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARREN | MI |
| — | 586-996 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARREN | MI |
| — | 586-997 | 7XXX8XXX · 2 holders which blocks → | MICHIGAN BELL TEL CO | 9323 | UTICA | MI |
| — | 601-200 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-201 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | MS |
| — | 601-206 | 0XXX2XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-207 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MS | 719E | MERIDIAN | MS |
| — | 601-208 | 0XXX9XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-209 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | MS |
| — | 601-211 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MS |
| — | 601-212 | not yet reported which blocks → | POWERTEL MEMPHIS LICENSES, INC. | 7474 | JACKSON | MS |
| — | 601-214 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | MS |
| — | 601-215 | 2XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | PICAYUNE | MS |
| — | 601-216 | 7XXX which blocks → | ONVOY, LLC - MS | 719E | MOUNTOLIVE | MS |
| — | 601-217 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | BRANDON | MS |
| — | 601-218 | not yet reported which blocks → | CELLULAR SOUTH, INC. | 6581 | VICKSBURG | MS |
| — | 601-221 | not yet reported which blocks → | MS | |||
| — | 601-222 | 3XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | TYLERTOWN | MS |
| — | 601-223 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | NATCHEZ | MS |
| — | 601-224 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | HAZLEHURST | MS |
| — | 601-225 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | GLOSTER | MS |
| — | 601-226 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | QUITMAN | MS |
| — | 601-227 | 3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | MERIDIAN | MS |
| — | 601-228 | 0–9 XXXall 10 · 4 holders which blocks → | AIRUS, INC. - MS | 459H | CENTREVL | MS |
| — | 601-230 | 0XXX7XXX8XXX · 3 holders which blocks → | AIRUS, INC. - MS | 459H | LAUREL | MS |
| — | 601-231 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | MENDENHALL | MS |
| — | 601-232 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | UNION | MS |
| — | 601-233 | 3XXX7XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MS | 992E | MCCOMB | MS |
| — | 601-234 | not yet reported which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | RALEIGH | MS |
| — | 601-235 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | PURVIS | MS |
| — | 601-236 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MS | 992E | MERIDIAN | MS |
| — | 601-237 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | QUITMAN | MS |
| — | 601-238 | 9XXX which blocks → | METROPCS, INC. | 5562 | JACKSON | MS |
| — | 601-239 | none assigned yet which blocks → | BANDWIDTH.COM CLEC, LLC - MS | 992E | TYLERTOWN | MS |
| — | 601-240 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | POPLARVL | MS |
| — | 601-241 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | RALEIGH | MS |
| — | 601-242 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | PURVIS | MS |
| — | 601-243 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | SUMRALL | MS |
| — | 601-244 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | LUMBERTON | MS |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.