Universal Licensing System
421HZ
IsoTropic Networks Inc.
License details
| ULS identifier | 3090624 |
|---|
| Call sign | 421HZ |
|---|
| Radio service | AC |
|---|
| Status | E |
|---|
| Grant date | 2009-03-31 |
|---|
| Expiration | 2019-03-31 |
|---|
| Cancellation | 2019-06-01 |
|---|
| Source archive | l_aircr.zip |
|---|
| Dataset refreshed | 2026-08-02 01:41:16 |
|---|
Licensee
| Name | IsoTropic Networks Inc. |
|---|
| Applicant type | C |
|---|
| FRN | 0018648543 |
|---|
| Location | Lake Geneva, WI |
|---|
| Address | W2835 Kueger Rd., Lake Geneva, WI, 53147 |
|---|
License history
| Date | File or call sign | Action |
|---|
| 2019-06-01 | 421HZ | LIEXP |
| 2019-02-11 | 421HZ | LETRES |
| 2009-03-31 | 421HZ | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3090624 | 2026-08-02 01:41:16 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | 421HZ | ULS 3090624 | 2026-08-02 01:41:16 |
| Status | E | ULS 3090624 | 2026-08-02 01:41:16 |
| Service | AC | ULS 3090624 | 2026-08-02 01:41:16 |
| Grant Date | 2009-03-31 | ULS 3090624 | 2026-08-02 01:41:16 |
| Expiration Date | 2019-03-31 | ULS 3090624 | 2026-08-02 01:41:16 |
| Cancellation Date | 2019-06-01 | ULS 3090624 | 2026-08-02 01:41:16 |