Data as of Nov 3, 2026
138.4.0.0/16
50 residential-proxy exits · 30 daysEntidad Publica Empresarial Red.es · space held by Universidad Politecnica de Madrid
Residential-proxy exits
Proxy exits
50
0.08% of its addresses · 30 days
Spread
28 of 256
/24s with at least one exit
Providers
10
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
144 observations
/24s with the most always-on exits
Proxy providers listing exits
- Byteful
- EnigmaProxy
- FastProxy
- KocerRoxy
- LemonBright
- NovaProxy
- Proxiware
- ProxyEmpire
- Proxying
- VitalExclusive
Network & registry
Origin network
AS766
ES
- Name
- Entidad Publica Empresarial Red.es
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- rediris.es
- Website
- www.rediris.es
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
- 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
- 138.4.0.0/16
- Netname
- UPM
- Registrant
- Universidad Politecnica de Madrid
- Registrant country
- ES
- Organization
- Universidad Politecnica de Madrid (ORG-UPDM2-RIPE)
- Org country
- ES
- Type
- LEGACY
- Created
- Not stated by the registry
- Updated
- Aug 19, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- ES
- Delegated
- Jan 20, 1990
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- RedIRIS Organizations Abuse contact
- Handle
- IRIS5-RIPE