AS40831

Name: AS40831 — Mass General Brigham Incorporated
Creator: ipdex

Mass General Brigham Incorporated Unknown registered in United States

5IPv4 prefixes

0IPv6 prefixes

20%RPKI-valid

#9,178AS Rank

327/327RIS visibility

#5,292Rank in United States

2017-07-25Allocated

Mass General Brigham Incorporated (AS40831) — Unknown, registered in United States. announces 5 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #5292. Allocated: 2017-07-25.

IPv4 5IPv6 0

Announced prefixes · 5

v4 132.183.0.0/16 unknown
v4 155.52.0.0/16 unknown
v4 160.72.231.0/24 unknown
v4 170.223.0.0/16 unknown
v4 50.216.106.0/24 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 5 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	5
2026-06-13	5

AS topology · Customer cone 2

Providers · 3

AS46887 Zayo Bandwidth
AS7015 Comcast Cable Communications, LLC
AS40127 Longwood Medical and Academic Area (LMA)

Customers · 1

AS394784 Massachusetts Eye and Ear Infirmary

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