Data as of Nov 3, 2026
Autonomous system
AS40831
Mass General Brigham Incorporated
Announces 196,864 addresses in 5 prefixes. None of it is anonymizer space.
Type
Business
US
Proxy activity, 30 days
70 exits
Announced prefixes
| Prefix | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|
| 132.183.0.0/16 since Dec 2019 | Business | 5 | Massachusetts General Hospital | |
| 155.52.0.0/16 since Dec 2019 | Business | Dana-Farber Cancer Institute | ||
| 160.72.231.0/24 since Mar 2021 | Business | Zayo Bandwidth | ||
| 170.223.0.0/16 since Dec 2019 | Business | 64 3 always on | ||
| 170.223.13.0/24 since Jul 2026 | Business | 11 3 always on |
Residential-proxy exposure
Always-on exits
3
4.3% of its exits
Spread
5
/24s with at least one exit
Providers
36
selling exits here
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 170.223.13.0/24 | 3 | 11 | |
| 170.223.3.0/24 | 0 | 51 | |
| 132.183.56.0/24 | 0 | 4 | |
| 170.223.207.0/24 | 0 | 2 | |
| 132.183.13.0/24 | 0 | 1 |
Proxy providers listing exits
- 711Proxy
- AnyIP
- B2Proxy
- BlurPath
- BottingTools
- Byteful
- CatProxies
- CliProxy
- ColaProxy
- DataImpulse
- EZProxies
- EnigmaProxy
- FastProxy
- FloppyData
- Geonode
- GloryCloud
- HideProxy
- IPFly
- IPPeak
- InfiniteProxies
- LemonBright
- LudaxProxy
- NextProxy
- NovProxy
- NovaProxy
- PrivateProxy
- ProxiesVision
- Proxy302
- ProxyEmpire
- ProxyGeo
- PuraRoute
- RainProxy
- Shifter
- Thordata
- VantageProxies
- WealthProxies
Proxy activity
Oct 4, 2026 – Nov 2, 2026
AS40831, day by day
4.9K observations
Network & history
Profile
- Registered
- Jul 25, 2017
- Domain
- massgeneralbrigham.org
- Industry
- Hospitals and Medical Centers
Routing patterns
How its announcements have moved
Arrivals