Data as of Nov 14, 2026
217.181.36.0/22
No anonymizer space · no proxy exits in 30 daysRM Education Ltd
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 |
|---|---|---|---|---|---|---|
| 217.181.0.0/18 | 16,384 | UK-RESEARCHMACHINES-20010302 | RM Education Ltd (ORG-RMP1-RIPE) · GB | ALLOCATED PA | Feb 26, 2026 | abuse@ |
| └ 217.181.36.0/22 | 1,024 | RM2031554 | unknown | ASSIGNED PA | Sep 20, 2017 | abuse@ via UK-RESEARCHMACHINES-20010302 |
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 217.181.0.0/18
- Prefix
- 217.181.0.0/18
- Announced by
- AS5503 RM Education Ltd
- Type
- Unknown
- Proxy exits
- 2
- RPKI
- RPKI valid
- Netname
- UK-RESEARCHMACHINES-20010302
- Registrant
- RM Education Ltd
- RIR
- RIPE NCC
Origin network
AS5503
GB
- Name
- RM Education Ltd
- Type
- Internet provider
- Registered
- Dec 22, 1995
- Domain
- rm.com
- Website
- www.rm.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 217.181.0.0/18
217.181.0.0/18
Routing history
- Pattern
- Stable
- First seen
- Mar 2024
- Current origin since
- Mar 2024 · 2.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 217.181.0.0/18 | AS5503 | /24 | RIPE | RPKI valid |
IRR
Route objects on 217.181.0.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5503 | RIPE | RM Education | AS5503-MNT | Apr 2, 2024 |
Whois
Registration for this announcement
- Range
- 217.
181. 0. 0/ 18 - Netname
- UK-RESEARCHMACHINES-20010302
- Registrant
- RM Education Ltd
- Registrant country
- GB
- Organization
- RM Education Ltd (ORG-RMP1-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Feb 26, 2026
- Updated
- Feb 26, 2026
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Mar 2, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ifl. net - Name
- Abuse-C Role
- Handle
- AR17877-RIPE