cryptic abbreviations in the NOTAM system reminds me of telcos using CLLI codes for unique geographical locations of physical telecom infrastructure sites - a l

cryptic abbreviations in the NOTAM system reminds me of telcos using CLLI codes for unique geographical locations of physical telecom infrastructure sites - a legacy of 1960s mainframe stuff where the number of characters in a database field for text entry was extremely constrained. https://en.wikipedia.org/wiki/CLLI_code https://en.wikipedia.org/wiki/CLLI_code