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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 219-886 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-887 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-888 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-895 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | GARY | IN | |
| 219-898 | T-MOBILE USA, INC. | 6529 | MICHIGANCY | IN | |
| 219-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | IN | |
| 219-921 | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN | |
| 219-922 | INDIANA BELL TEL CO INC | 9325 | HIGHLAND | IN | |
| 219-923 | INDIANA BELL TEL CO INC | 9325 | HIGHLAND | IN | |
| 219-924 | INDIANA BELL TEL CO INC | 9325 | HIGHLAND | IN | |
| 219-926 | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN | |
| 219-928 | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN | |
| 219-929 | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN | |
| 219-931 | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN | |
| 219-932 | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN | |
| 219-933 | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN | |
| 219-934 | INDIANA BELL TEL CO INC | 9325 | HIGHLAND | IN | |
| 219-937 | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN | |
| 219-938 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-939 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-940 | FRONTIER NORTH, INC.. - IN | 0772 | HOBART | IN | |
| 219-942 | FRONTIER NORTH, INC.. - IN | 0772 | HOBART | IN | |
| 219-944 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-945 | FRONTIER NORTH, INC.. - IN | 0772 | HOBART | IN | |
| 219-947 | FRONTIER NORTH, INC.. - IN | 0772 | HOBART | IN | |
| 219-949 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-950 | IN | ||||
| 219-954 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRANCESVL | IN | |
| 219-956 | BRIGHTSPEED OF INDIANA, LLC | 0832 | WHEATFIELD | IN | |
| 219-958 | SOUTH BEND | IN | |||
| 219-959 | IN | ||||
| 219-961 | TELEPORT COMMUNICATIONS AMERICA, LLC - IN | 7314 | HIGHLAND | IN | |
| 219-962 | FRONTIER NORTH, INC.. - IN | 0772 | LAKE STA | IN | |
| 219-963 | FRONTIER NORTH, INC.. - IN | 0772 | LAKE STA | IN | |
| 219-972 | INDIANA BELL TEL CO INC | 9325 | HIGHLAND | IN | |
| 219-973 | METROPCS, INC. | 5562 | HOBART | IN | |
| 219-976 | MULTIPLE OCN LISTING | MULT | IN | ||
| 219-977 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-979 | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | GARY | IN | |
| 219-980 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-981 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-983 | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN | |
| 219-984 | BRIGHTSPEED OF INDIANA, LLC | 0832 | REYNOLDS | IN | |
| 219-985 | INDIANA BELL TEL CO INC | 9325 | GARY | IN | |
| 219-986 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | REMINGTON | IN | |
| 219-987 | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | DEMOTTE | IN | |
| 219-988 | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | LKSFRSSONS | IN | |
| 219-989 | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN | |
| 219-992 | INDIANA BELL TEL CO INC | 9325 | LAKE VLG | IN | |
| 219-996 | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | HEBRON | IN |
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.