AS16223 COLUMBUS-PE-TE

Three brands: one in the handle, one in the netnames, and two more in the reverse names.

What it's used for

• A regional provider's network. Four prefixes announced from Ukraine, including one IPv6 prefix, sixty-nine thousand eight hundred and eighty-eight addresses, through twenty-three observed BGP neighbours.

Notable

• The AS handle is a three-part hyphenated string: an explorer's name, then two letters, then two more. None of the three parts appears in the holder field.
• All three IPv4 netnames use one scheme instead: a country code, the holder's brand, and a full date. The dates run across thirteen years.
• The largest block holds sixty-five thousand five hundred and thirty-six addresses on its own, which is most of the network in a single registration.
• Four of nine queried addresses answered, on two different domains. One is the word for a host, the address with hyphens, and a domain matching none of the other names in the record.
• The other three put the address first, then the same two letters that end the handle, then a domain that repeats those letters as its own label under the country's namespace.

Interesting

• A two-letter label that turns up in the handle, in the hostname and again in the domain is almost always a place: the region the network was built in, abbreviated once and then reused everywhere.
• Sixty-nine thousand addresses behind twenty-three neighbours is a provider that grew by peering rather than by buying more transit, which is the usual path for a network anchored in one region.