Data as of Nov 12, 2026
212.36.148.136/29
No anonymizer space · no proxy exits in 30 daysCOLT Technology Services Group Limited
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 |
|---|---|---|---|---|---|---|
| 212.36.128.0/18 | 16,384 | UK-COLT-980422 | COLT Technology Services Group Limited (ORG-CI9-RIPE) · GB | ALLOCATED PA | Dec 17, 2001 | abuse@ |
| └ 212.36.148.0/24 | 256 | DE-COLT-CUST-118 | COLT Telecom CGN | LIR-PARTITIONED PA | Oct 23, 2017 | abuse@ via UK-COLT-980422 |
| └ 212.36.148.136/29 | 8 | NET-DE-Iron-Mountain-Deutschland-Service-GmbH | Iron Mountain Deutschland Service GmbH | ASSIGNED PA | Mar 17, 2026 | abuse@ via DE-COLT-CUST-118 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 212.36.144.0/20
- Prefix
- 212.36.144.0/20
- Announced by
- AS8220 COLT Technology Services Group Limited
- Type
- Internet provider
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- UK-COLT-980422
- 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 212.36.144.0/20
212.36.144.0/20
Routing history
- Pattern
- Stable
- First seen
- Apr 2013
- Current origin since
- Apr 2013 · 14 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.36.144.0/20 | AS8220 | /20 | RIPE | RPKI valid |
| 212.36.128.0/18 | AS8220 | /18 | RIPE | Too specific |
IRR
Route objects on 212.36.144.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8220 | RIPE | COLT-UK-LIR | COLT-UK | Apr 2, 2013 |
Whois
Registration for this announcement
- Range
- 212.
36. 128. 0/ 18 - Netname
- UK-COLT-980422
- Registrant
- COLT Technology Services Group Limited
- Registrant country
- GB
- Organization
- COLT Technology Services Group Limited (ORG-CI9-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Dec 17, 2001
- Updated
- May 18, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Apr 22, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
colt. net - Name
- COLT Hostmaster
- Handle
- CHM4-RIPE