Data as of Nov 13, 2026
212.23.5.136/29
No anonymizer space · no proxy exits in 30 daysZen Internet Ltd
Network & registry
Announced by
Covering announcement 212.23.0.0/19
- Prefix
- 212.23.0.0/19
- Announced by
- AS13037 Zen Internet Ltd
- Type
- Residential
- Proxy exits
- 5
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- UK-ZEN-980323
- Registrant
- Zen Internet Ltd
- RIR
- RIPE NCC
Origin network
AS13037
GB
- Name
- Zen Internet Ltd
- Type
- Internet provider
- Registered
- Feb 25, 2000
- Domain
- zen.co.uk
- Website
- www.zen.co.uk/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- Tor exits
- 1
Routing timeline
Who has announced 212.23.0.0/19
212.23.0.0/19
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.23.0.0/19 | AS13037 | /20 | RIPE | RPKI valid |
IRR
Route objects on 212.23.0.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13037 | RIPE | Zen Internet Ltd | ZEN-MNT | Sep 22, 2001 |
Whois
Registration for this announcement
- Range
- 212.
23. 0. 0/ 19 - Netname
- UK-ZEN-980323
- Registrant
- Zen Internet Ltd
- Registrant country
- GB
- Organization
- Zen Internet Ltd (ORG-ZIL1-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Not stated by the registry
- Updated
- Jul 4, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Mar 23, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zen. co. uk - Name
- Abuse-C Role
- Handle
- AR18024-RIPE