AS16424 LBL-ESD

Three place names, one school agency, and sixty-five thousand addresses in a single unbroken block.

What it's used for

• A regional education agency's network. One IPv4 prefix announced from the United States, no IPv6, sixty-five thousand five hundred and thirty-six addresses, through two observed BGP neighbours.

Notable

• The AS handle is three initials, a hyphen, and three more letters for the agency's role. The netname runs the same initials together with no separator at all, so the two identifiers spell the same thing and punctuate it differently.
• The whole announcement is one block, and it is the largest single prefix size in common use.
• The block is registered to the agency under its full name with no abuse contact and no technical role listed beside it.
• Three addresses were queried for reverse DNS and none returned a name.
• Two observed neighbours carry the entire block, a low count of upstreams for an allocation this size.

Interesting

• Education agencies serving several districts at once were early enough to the network that they were handed address space by the block rather than by the subnet. The size records when the request was made, not how many machines sit behind it.
• The name lists three place names in a row without joining them, which is how a shared services agency signs its work: the constituents are the name.
• Sixty-five thousand addresses with nothing in reverse DNS and no published contact is a network run for its own schools and nobody else. There is no outside audience to name anything for.