Data as of Nov 11, 2026
169.231.131.0/24
3 residential-proxy exits · 30 daysUniversity of California, Santa Barbara · space held by University of California - Office of the President
Residential-proxy exits
Proxy exits
3
1.2% of its addresses · 30 days
Providers
2
selling exits here
Oct 12, 2026 – Nov 10, 2026
Exits seen per day
6 observations
Proxy providers listing exits
- Byteful
- ColaProxy
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 169. | 327,680 | UCSD-NET-169-228 | University of California - Office of the President (UCOP-Z) · US | Direct Allocation | Aug 4, 1995 | noc@ |
| └ 169.231.0.0/16 | 65,536 | UCNET-BLK4-UCSB | University of California, Santa Barbara (UCSB) · US | Reassigned | May 17, 2004 | security@ |
Network & registry
Announced by
Covering announcement 169.231.0.0/16
- Prefix
- 169.231.0.0/16
- Announced by
- AS131 University of California, Santa Barbara
- Type
- Business
- Proxy exits
- 217
- RPKI
- No RPKI
- Netname
- UCNET-BLK4-UCSB
- Registrant
- University of California, Santa Barbara
- RIR
- ARIN
IPv4 market
Holder
- Organization
- University of California - Office of the President
- Handle
- UCOP-Z
- Range
- 169.
229. 0. 0 - 169. 233. 255. 255 - Registration type
- Direct Allocation
- Record created
- Aug 4, 1995
- Legacy
- yes
Origin network
AS131
US
- Name
- University of California, Santa Barbara
- Type
- Business
- Registered
- Sep 30, 1987
- Domain
- ucsb.edu
- Industry
- Government and Regulatory Agencies, Administrations, Departments, and Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 169.231.0.0/16
169.231.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 169.
231. 0. 0/ 16 - Netname
- UCNET-BLK4-UCSB
- Registrant
- University of California, Santa Barbara
- Organization
- University of California, Santa Barbara (UCSB)
- Org address
- Office of Information Technology, Santa Barbara, CA, 93106-3201
- Org country
- US
- Type
- Reassigned
- Handle
- NET-169-231-0-0-1
- Parent
- NET-169-229-0-0-1
- Created
- May 17, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 4, 1995
- Status
- assigned
Report abuse
Abuse contact
- security@
ucsb. edu - Name
- Network Security
- Phone
- +1-805-893-5080
- Handle
- NETWO4536-ARIN