Data as of Nov 5, 2026
161.17.0.0/16
5 residential-proxy exits · 30 daysCOLT Technology Services Group Limited · space held by Guy's and St Thomas' NHS Foundation Trust
Residential-proxy exits
Proxy exits
5
<0.01% of its addresses · 30 days
Spread
1 of 256
/24s with at least one exit
Providers
33
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
620 observations
Proxy providers listing exits
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- BirdProxies
- BottingTools
- Byteful
- CliProxy
- DataImpulse
- EnigmaProxy
- FastProxy
- FloppyData
- Geonode
- IPPeak
- InfiniteProxies
- LemonBright
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PrivateProxy
- Proxiware
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- ProxyWing
- RealProxy
- ResiProxies
- Thordata
- ThunderProxy
- VantageProxies
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 161.17.0.0/24 since Mar 2018 | AS15404 | Unknown | 5 | Guy's and St Thomas' NHS Foundation Trust |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 65,280 | >99% | 1 | |
| Unknown | 256 | 0.39% | 1 |
Network & registry
Origin network
AS15404
GB
- Name
- COLT Technology Services Group Limited
- Type
- Internet provider
- Registered
- Jun 21, 2000
- Domain
- colt.net
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2011
- Current origin since
- Dec 2015 · 11 yr
- Origin networks
- 2
- Last change of origin
- Dec 2015
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS15404 | RIPE | Route object for | COLT-UK | Dec 21, 2015 |
Whois
Registration for this announcement
- Range
- 161.
17. 0. 0/ 16 - Netname
- UK-GUYS-AND-ST-THOMAS-NHS-FOUNDATION-TRUST
- Registrant
- Guy's and St Thomas' NHS Foundation Trust
- Registrant country
- GB
- Organization
- Guy's and St Thomas' NHS Foundation Trust (ORG-GAST1-RIPE)
- Org country
- GB
- Type
- LEGACY
- Created
- Jan 20, 2004
- Updated
- Jul 22, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- gstt.
itnetworksandsecurity@ nhs. net - Name
- GSTTAbuse-mailbox
- Handle
- GA13804-RIPE