Data as of Nov 6, 2026
170.223.0.0/16
63 residential-proxy exits · 30 daysMass General Brigham Incorporated
Residential-proxy exits
Proxy exits
63
0.10% of its addresses · 30 days
Always-on exits
3
4.8% of its exits
Spread
3 of 256
/24s with at least one exit
Providers
35
selling exits here
Oct 7, 2026 – Nov 5, 2026
Exits seen per day
4.4K observations
/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 | |
| 170.223.207.0/24 | 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
- ProxiesVision
- Proxy302
- ProxyEmpire
- ProxyGeo
- PuraRoute
- RainProxy
- Shifter
- Thordata
- VantageProxies
- WealthProxies
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 170.223.13.0/24 since Jul 2026 | AS40831 | Business | 11 3 always on | Mass General Brigham Incorporated |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 170.223.0.0/16 | 65,536 | PHCS-B | Mass General Brigham Incorporated (PHS-8) · US | Direct Allocation | Jul 14, 1995 | tmccann@ |
| └ 170.223.13.0/24 | 256 | MGB-MEGAPORT-NDC | Mass General Brigham Incorporated (C11604911) · US | Reassigned | May 27, 2026 | tmccann@ via PHCS-B |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Origin network
AS40831
US
- Name
- Mass General Brigham Incorporated
- Type
- Business
- Registered
- Jul 25, 2017
- Domain
- massgeneralbrigham.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2019 · 6.9 yr
- Origin networks
- 3
- Last change of origin
- Dec 2019
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 170.
223. 0. 0/ 16 - Netname
- PHCS-B
- Registrant
- Mass General Brigham Incorporated
- Organization
- Mass General Brigham Incorporated (PHS-8)
- Org address
- Brigham & Womens Hospital Information Systems 10 Vining Street, Boston, MA, 02115
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-170-223-0-0-1
- Parent
- NET-170-0-0-0-0
- Created
- Jul 14, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 14, 1995
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN