Data as of Nov 6, 2026
137.56.37.0/24
2 residential-proxy exits · 30 daysSurf B.V. · space held by Universiteit van Tilburg
Residential-proxy exits
Proxy exits
2
0.78% of its addresses · 30 days
Providers
5
selling exits here
Oct 7, 2026 – Nov 5, 2026
Exits seen per day
40 observations
Proxy providers listing exits
- FloppyData
- NovaProxy
- ProxyGeo
- RainProxy
- Shifter
Network & registry
Announced by
Covering announcement 137.56.0.0/16
- Prefix
- 137.56.0.0/16
- Announced by
- AS1103 Surf B.V.
- Type
- Business
- Proxy exits
- 35
- RPKI
- RPKI valid
- Netname
- UVTNET-B
- Registrant
- Universiteit van Tilburg
- RIR
- RIPE NCC
Origin network
AS1103
NL
- Name
- Surf B.V.
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- surf.nl
- Website
- www.surf.nl/en
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 137.56.0.0/16
137.56.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 137.56.0.0/16 | AS1103 | /24 | RIPE | RPKI valid |
IRR
Route objects on 137.56.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1103 | RIPE | KUBNET-B | AS1103-MNT | Sep 22, 2001 |
Whois
Registration for this announcement
- Range
- 137.
56. 0. 0/ 16 - Netname
- UVTNET-B
- Registrant
- Universiteit van Tilburg
- Registrant country
- NL
- Organization
- Universiteit van Tilburg (ORG-UVT1-RIPE)
- Org country
- NL
- Type
- LEGACY
- Created
- Jul 25, 2002
- Updated
- Feb 25, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Jul 5, 1990
- Status
- assigned
Report abuse
Abuse contact
- cert@
surfcert. nl - Name
- SURF Network Maintainer
- Handle
- SNS1-RIPE