AS16498 — LASALLE

AS16498 announces 4 IPv4 prefixes covering 3,840 addresses and 0 IPv6 prefixes.

About this network

Eleven pieces of one parent range, at six different sizes, all called the same thing.

What it's used for

• A university's network. Eleven IPv4 prefixes announced from the United States, no IPv6, sixteen thousand one hundred and twenty-eight addresses, through two observed BGP neighbours.

Notable

• Every block comes from the same parent range, and every one is registered under the same seven-letter netname: the university's name with nothing added.
• The pieces come at six different sizes, from the largest here down to the smallest routable one, and they cluster in two groups at opposite ends of the parent range with a gap between them.
• The announced total is a fraction of the parent range, so most of the university's allocation is not routed here at all.
• The AS handle is the same seven letters as the netname, with the university word dropped from both.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• Two clusters with a gap between them is the shape of a network that grew from both ends. Somebody started at the bottom of the range and somebody else started partway up, and the middle was left for later.
• Announcing a fraction of an allocation is normal and invisible from outside. What a network routes is a decision; what it holds is a fact, and only the first one shows up in the routing table.
• A netname repeated eleven times is a field filled in by habit: honest, and distinguishing nothing.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 139.84.0.0/21
• 139.84.8.0/22
• 139.84.12.0/23
• 139.84.15.0/24

Upstream networks

• AS174 Cogent Communications, LLC
• AS21976 NJEDge.Net, Inc.

Adjacent networks

• AS174 Cogent Communications, LLC
• AS21976 NJEDge.Net, Inc.