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OK to confirm, you can if you want put your airline, address etc on it if you want, but it is not imperative. If you are only going once, you can put it in (you can update it at anytime here https://esta.cbp.dhs.gov/esta/ if you really want to). When you get to DH/Customs they may ask you where/when/how long/why are you coming to the US.
I have just checked mine and I have no airline number listed but I have my US address (for obvious reasons) but it is not actually needed as if you're touring or multiple entries over 2 years to different destinations. |
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