AS16423 NETTOGO-BLK

One word does all the work: handle, netname, registrant and reverse zone are the same brand.

What it's used for

• A provider's network. Two prefixes announced from the United States, one of them IPv6, eight thousand one hundred and ninety-two addresses, through two observed BGP neighbours.

Notable

• The AS handle is the brand followed by three letters standing for a block. Every other field is the bare brand with nothing appended.
• The single registered IPv4 block lists the brand as both netname and registrant, with no abuse contact and no technical role.
• Two of three queried addresses answered, each with the brand, then the third and fourth parts of its own address hyphenated on, under the company's own domain.
• The reverse names drop the first two parts of the address. Inside this block that is still unique; the same name pattern applied to a neighbouring block would collide.
• An IPv6 prefix is announced, but the registry inventory holds only the IPv4 block, so the addressing that is routed and the addressing that is recorded do not match.

Interesting

• A record where the brand appears identically in four separate systems is the exception in this range, not the rule. Most networks accumulate a different spelling in each place a human had to type it.
• Encoding half the address into the reverse name is a scheme that works exactly as long as the network stays one block. It is a convention borrowed from a larger provider and applied at a size where the shortcut costs nothing yet.