There are two ways of filing an application to modify your license; electronically or manually. The rules require certain services to file electronically (See 1.913(b) of the Commission’s Rules
Some modifications require frequency coordination.
Interference Protection Criteria and Frequency Coordination requirements for Part 101 licensees and Part 74 Licensees in bands above 944 MHz (except 2025 – 2110 MHz) are contained in Section 101.105 and 101.103(d) of the Commission’s Rules. Coordination requirements for the 2025 – 2110 MHz band are contained in Section 74.638(c) of the Commission’s Rules.
Note: The address and contact information you have entered in CORES registration will not be automatically associated with your licenses. To change the address or other contact information on your license, you must update your information in ULS or submit Form 601 manually.
When entering information into the online system, licensees will find that certain fields and questions collected on the FCC Form 601 must be completed or ULS edits will not allow the licensee to continue to the next screen. ULS will display a message if a required field is left blank and licensees will be given the opportunity to go back to the screen and complete the required fields.
To modify your license, access the ULS homepage
, select Online Filing, and follow the instructions below.
See Forms & Fees
for information on how to download forms, or request forms by phone, fax on demand, or in writing. For information on applicable fees, see the Wireless Filing Guide