AS16142 ING-bank-SK ING Bank N.V., pobocka zahranicnej banky

Three different carrier brands appear in one record, and the bank is the registrant of none of them.

What it's used for

• A bank branch's network. A single IPv4 prefix announced from Slovakia, no IPv6, two hundred and fifty-six addresses, through one observed BGP neighbour.

Notable

• The AS handle is the bank's name cut off after a trailing hyphen, with whatever came next missing.
• The holder field names the bank under its foreign parent's legal form followed by the phrase for a branch of a foreign bank, which is the exact legal construction rather than a trading name.
• The block is registered to two roles belonging to two telecoms companies, one an administrator and one a registry object. The bank appears nowhere in the registration.
• All three queried addresses answered, each with a letter and the last number of the address, then the bank's initials, then two letters for the capital, then the word for a customer, on the domain of a third telecoms company again.
• So the record and the reverse zone between them name three carriers and one bank.

Interesting

• Chains of acquisition in a small telecoms market leave exactly this residue: the reverse zone still answers on the domain of the company that installed the line, while the registry has been updated twice since to whoever owns them now.
• Marking a range as a customer's in the hostname is standard carrier practice and quietly informative. It says the addresses are leased rather than owned, which the registry record already implied.