NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 734-878 | MICHIGAN BELL TEL CO | 9323 | PINCKNEY | MI | |
| 734-879 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | YPSILANTI | MI | |
| 734-887 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI | |
| 734-888 | FRONTIER NORTH, INC. - OH | 0615 | NOSYLVANIA | MI | |
| 734-890 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WAYNE | MI | |
| 734-893 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ROMULUS | MI | |
| 734-895 | COMCAST IP PHONE, LLC | 318J | WAYNE | MI | |
| 734-900 | MI | ||||
| 734-902 | TELNET WORLDWIDE, INC. | 817J | WAYNE | MI | |
| 734-904 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ANN ARBOR | MI | |
| 734-905 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | YPSILANTI | MI | |
| 734-906 | MI | ||||
| 734-907 | SPOK, INC. | 6630 | TRENTON | MI | |
| 734-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MI | |
| 734-913 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-917 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ERIE | MI | |
| 734-922 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ANN ARBOR | MI | |
| 734-925 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | FLAT ROCK | MI | |
| 734-926 | BANDWIDTH.COM CLEC, LLC - MI | 991E | ANN ARBOR | MI | |
| 734-927 | BANDWIDTH.COM CLEC, LLC - MI | 991E | PLYMOUTH | MI | |
| 734-928 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | PLYMOUTH | MI | |
| 734-929 | COMCAST IP PHONE, LLC | 318J | ANN ARBOR | MI | |
| 734-930 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-931 | BANDWIDTH.COM CLEC, LLC - MI | 991E | FLAT ROCK | MI | |
| 734-936 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-939 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROMULUS | MI | |
| 734-941 | MICHIGAN BELL TEL CO | 9323 | ROMULUS | MI | |
| 734-942 | MICHIGAN BELL TEL CO | 9323 | ROMULUS | MI | |
| 734-944 | FRONTIER NORTH, INC. - MI | 0695 | SALINE | MI | |
| 734-945 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ANN ARBOR | MI | |
| 734-946 | MICHIGAN BELL TEL CO | 9323 | ROMULUS | MI | |
| 734-947 | MICHIGAN BELL TEL CO | 9323 | ROMULUS | MI | |
| 734-950 | MI | ||||
| 734-953 | MICHIGAN BELL TEL CO | 9323 | LIVONIA | MI | |
| 734-954 | MICHIGAN BELL TEL CO | 9323 | PINCKNEY | MI | |
| 734-955 | MICHIGAN BELL TEL CO | 9323 | ROMULUS | MI | |
| 734-956 | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | LIVONIA | MI | |
| 734-957 | MICHIGAN BELL TEL CO | 9323 | BELLEVILLE | MI | |
| 734-958 | MI | ||||
| 734-959 | MI | ||||
| 734-961 | COMCAST IP PHONE, LLC | 318J | YPSILANTI | MI | |
| 734-968 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | WAYNE | MI | |
| 734-969 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ROCKWOOD | MI | |
| 734-970 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | PINCKNEY | MI | |
| 734-971 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-972 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ANN ARBOR | MI | |
| 734-973 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-975 | MICHIGAN BELL TEL CO | 9323 | ANN ARBOR | MI | |
| 734-976 | MI | ||||
| 734-979 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | PLYMOUTH | MI |
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.