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IETF 101 Letters of Invitation

London, UK

Google, one of the co-hosts for IETF 101, has generously agreed to provide letters of invitation (LOIs) to attendees applying for a visa. Google has an in-house process for requesting a LOI, and anyone requiring either a soft or hard copy LOI will need to complete an online Google form.

Form Instructions

Host Information

  • Full Name of Host at Google: Carly Tonkin
  • Email Address of Host at Google: ctonkin @
  • Contact number of Host at Google: +447768508165

Please allow at least 5 business days for your LOI request to be processed and please do not reach out to Carly directly unless absolutely necessary. Please contact the Secretariat at for any LOI-related questions first.

Conference Information

  • What city are you visiting for the conference? London
  • What country are you visiting: Select United Kingdom from the drop down menu
  • What is the name of the event or conference you are visiting?  IETF 101
  • Where is the conference or event taking place? London Hilton Metropole
  • What is the address of the event location? 225 Edgware Rd, London W2 1JU, UK
  • What portion of the costs of this visit are you responsible for? Choices are "none", "some" and "all". Select 'all.'

Personal Information

  • Complete the fields with your personal details (e.g. name, passport number, etc.)

Visa Information

  • Complete the fields with details about your dates of travel, embassy information, etc.
  • Note that, while hard copy LOIs are an option, electronic copies will be sufficient for almost all visa applicants. Please only request a hard copy LOI if you are sure it's required by your embassy.
  • For "Type of Visa" please select "single entry."

Finally, when you have completed all fields, please hit the blue "Submit" button at the bottom of the page.

Information entered into the Google form is subject to the Google Privacy Policy, which is available here: