Data as of Nov 12, 2026
87.241.58.0/23
No anonymizer space · no proxy exits in 30 daysCOLT Technology Services Group Limited
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 352 | 69% | 32 | |
| Internet provider | 160 | 31% | 12 |
Network & registry
Announced by
Covering announcement 87.241.0.0/18
- Prefix
- 87.241.0.0/18
- Announced by
- AS8220 COLT Technology Services Group Limited
- Type
- Internet provider
- Proxy exits
- 12
- RPKI
- RPKI valid
- Netname
- UK-COLT-20050704
- Registrant
- COLT Technology Services Group Limited
- RIR
- RIPE NCC
Origin network
AS8220
GB
- Name
- COLT Technology Services Group Limited
- Type
- Internet provider
- Registered
- Feb 24, 1997
- Domain
- colt.net
- Website
- www.colt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 87.241.0.0/18
87.241.0.0/18
Routing history
- Pattern
- Stable
- First seen
- Jul 2005
- Current origin since
- Jul 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 87.241.0.0/18 | AS8220 | /18 | RIPE | RPKI valid |
IRR
Route objects on 87.241.0.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8220 | RIPE | COLT Internet IT | COLT-IT-MNT | Jul 4, 2005 |
Whois
Registration for this announcement
- Range
- 87.
241. 0. 0/ 18 - Netname
- UK-COLT-20050704
- Registrant
- COLT Technology Services Group Limited
- Registrant country
- IT
- Organization
- COLT Technology Services Group Limited (ORG-CI9-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Jul 4, 2005
- Updated
- May 18, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Jul 4, 2005
- Status
- assigned
Report abuse
Abuse contact
- abuse@
colt. net - Name
- COLT Hostmaster
- Handle
- CHM4-RIPE