AS31770

Name: AS31770 — Ann & Robert H. Lurie Children's Hospital of Chicago
Creator: ipdex

Ann & Robert H. Lurie Children's Hospital of Chicago Unknown registered in United States

9IPv4 prefixes

0IPv6 prefixes

#26,025AS Rank

327/327RIS visibility

#3,482Rank in United States

2003-12-17Allocated

Ann & Robert H. Lurie Children's Hospital of Chicago (AS31770) — Unknown, registered in United States. announces 9 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #3482. Allocated: 2003-12-17.

IPv4 9IPv6 0

Announced prefixes · 9

v4 192.206.211.0/24 unknown
v4 192.206.212.0/24 unknown
v4 192.206.216.0/24 unknown
v4 199.125.16.0/24 unknown
v4 199.125.17.0/24 unknown
v4 199.125.18.0/24 unknown
v4 199.125.20.0/24 unknown
v4 199.125.30.0/24 unknown
v4 199.125.31.0/24 unknown

Routing: 9 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	9
2026-06-13	9

AS topology · Customer cone 1

Providers · 3

AS6461 Zayo Bandwidth
AS22335 Metropolitan Research and Education Network
AS13499 NEW CCH, LLC

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