VP-16, Eagles deployed to Keflavik more than once with their P-3Cs like the one shown here. Later they got the P-3C Update II.5 and also brought those to Keflavik.
All of the VP-16 P-3s had nose number coinciding with the last digit of their BUNo, like this one. They managed that also with their Update II.5 series that they brought to Keflavik later.