Export VCARDS on your computer, open notepad++
Ctrl+F and regex:
(?s)BEGIN:VCARD(?:(?!END:VCARD|\bTEL\b).)*END:VCARD
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Regex breakdown:
(?s) # Allow the dot to match newlines.
BEGIN:VCARD # Match "BEGIN:VCARD".
(?: # Start non-capturing group.
(?! # Make sure we're not able to match either
END:VCARD # the text "END:VCARD" (we don't want to match beyond the end)
| # or
\bTEL\b # "TEL" (because we don't want them to be in the match).
) # End of lookahead.
. # Match any character (if the preceding condition is fulfilled),
)* # repeat as needed.
END:VCARD # Match "END:VCARD"