Data as of Nov 13, 2026
217.28.48.0/24
No anonymizer space · no proxy exits in 30 daysRETN 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 |
|---|---|---|---|---|---|---|
| 217.28.48.0/20 | 4,096 | UK-RETN-20030326 | RETN Limited (ORG-RL19-RIPE) · GB | ALLOCATED PA | Dec 19, 2023 | abuse@ |
| └ 217.28.48.0/24 | 256 | OPTRON | SIA RETN Baltic | ASSIGNED PA | Oct 28, 2010 | abuse@ via UK-RETN-20030326 |
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 217.28.48.0/20
- Prefix
- 217.28.48.0/20
- Announced by
- AS28886 RETN Limited
- Type
- Internet provider
- Proxy exits
- 9
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- UK-RETN-20030326
- Registrant
- RETN Limited
- RIR
- RIPE NCC
Origin network
AS28886
GB
- Name
- RETN Limited
- Type
- Internet provider
- Registered
- Mar 26, 2003
- Domain
- retn.net
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 217.28.48.0/20
217.28.48.0/20
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 |
|---|---|---|---|---|
| 217.28.48.0/20 | AS28886 | /20 | RIPE | RPKI valid |
IRR
Route objects on 217.28.48.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS28886 | RIPE | RETN Baltic SIA | OPTRON-MNT | Jul 21, 2020 |
Whois
Registration for this announcement
- Range
- 217.
28. 48. 0/ 20 - Netname
- UK-RETN-20030326
- Registrant
- RETN Limited
- Registrant country
- LV
- Organization
- RETN Limited (ORG-RL19-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Dec 19, 2023
- Updated
- Jul 2, 2025
- Maintainer
- MNT-RETN
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Mar 26, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
retn. net - Name
- RETN.net Contacts Data
- Handle
- RCD1-RIPE