Data as of Nov 14, 2026
212.121.4.0/24
No anonymizer space · no proxy exits in 30 daysJisc Services 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 |
|---|---|---|---|---|---|---|
| 212.121.0.0/19 | 8,192 | UK-JANET-981113 | Jisc Services Limited (ORG-UA23-RIPE) · GB | ALLOCATED PA | Jan 6, 2015 | irt@ |
| └ 212.121.4.0/24 | 256 | HERTREG-03 | Hertford Regional College | ASSIGNED PA | Feb 10, 2015 | irt@ via UK-JANET-981113 |
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 212.121.0.0/19
- Prefix
- 212.121.0.0/19
- Announced by
- AS786 Jisc Services Limited
- Type
- Business
- RPKI
- RPKI valid
- Netname
- UK-JANET-981113
- Registrant
- Jisc Services Limited
- RIR
- RIPE NCC
Origin network
AS786
GB
- Name
- Jisc Services Limited
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- jisc.ac.uk
- Website
- www.jisc.ac.uk/janet
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 212.121.0.0/19
212.121.0.0/19
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 |
|---|---|---|---|---|
| 212.121.0.0/19 | AS786 | /19 | RIPE | RPKI valid |
IRR
Route objects on 212.121.0.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS786 | RIPE | JANET | JIPS-NOSC | Feb 9, 2015 |
Whois
Registration for this announcement
- Range
- 212.
121. 0. 0/ 19 - Netname
- UK-JANET-981113
- Registrant
- Jisc Services Limited
- Registrant country
- GB
- Organization
- Jisc Services Limited (ORG-UA23-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Jan 6, 2015
- Updated
- Feb 11, 2020
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Nov 13, 1998
- Status
- assigned
Report abuse
Abuse contact
- irt@
jisc. ac. uk - Name
- Jisc CSIRT Admin
- Handle
- JCA95-RIPE