AS15357 — HCL-186-15357

AS15357 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The AS handle ends in its own AS number, and the netname is the handle with that part cut off.

What it's used for

• A medical group's network. A single IPv4 /24 announced from the United States, no IPv6, and one observed BGP neighbour.

Notable

• The AS handle is three initials, a number, and then this autonomous system's own number appended to the end.
• The netname is the same string with the AS number removed, so the two identifiers are the same registration written at two different levels of detail.
• Routing history for this number begins in 2006.
• Three addresses were queried for reverse DNS and none returned a name.
• Two hundred and fifty-six addresses reaching the internet through one upstream.

Interesting

• Putting the AS number inside the AS handle is redundant by definition, and it happens often enough that it is worth recognising: the registry form asked for a name and someone gave it an identifier.
• A clinic's network holds patient records, which are regulated differently from ordinary business data. Keeping one small block and publishing nothing in reverse fits that.
• One upstream means one failure away from being unreachable. For a practice that schedules and bills online, that is a real dependency on a single provider.

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

Announced prefixes

• 136.228.177.0/24

Upstream networks

• AS40111 Parker FiberNet, LLC

Adjacent networks

• AS40111 Parker FiberNet, LLC