Data as of Nov 3, 2026
158.121.0.0/16
10 residential-proxy exits · 30 daysUMASSNET · space held by University of Massachusetts at Boston
Residential-proxy exits
Proxy exits
10
0.02% of its addresses · 30 days
Spread
1 of 256
/24s with at least one exit
Providers
44
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
1.5K observations
Proxy providers listing exits
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BottingTools
- Bright Data
- Byteful
- CatProxies
- CliProxy
- ColaProxy
- DataImpulse
- EnigmaProxy
- FastProxy
- FloppyData
- Geonode
- GloryCloud
- HideProxy
- IPFly
- IPPeak
- IPRoyal
- InfiniteProxies
- Kookey
- LemonBright
- LudaxProxy
- NovaProxy
- PacketStream
- PrivateByte
- ProxiesVision
- Proxmint
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxying
- PuraRoute
- RainProxy
- ResiProxies
- RoamProxy
- RolaProxy
- Shifter
- Thordata
- VantageProxies
- WealthProxies
Network & registry
Origin network
AS1968
US
- Name
- UMASSNET
- Type
- Education
- Registered
- Aug 28, 1992
- Domain
- umass.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 158.121.0.0/16
- Netname
- UMASSBOSTON2
- Registrant
- University of Massachusetts at Boston
- Organization
- University of Massachusetts at Boston (UMAB)
- Org address
- IT Communication and Infrastructure Services, Boston, MA, 02125
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-158-121-0-0-1
- Parent
- NET-158-0-0-0-0
- Created
- Feb 28, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 28, 1992
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN