Data as of Nov 7, 2026
151.236.208.0/21
No anonymizer space · no proxy exits in 30 daysSysGroup plc
Network & registry
Origin network
AS39537
GB
- Name
- SysGroup plc
- Type
- Hosting
- Registered
- Mar 15, 2006
- Domain
- sysgroup.com
- Website
- www.hns.net
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2023
- Current origin since
- Apr 2023 · 3.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Feb 17, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 151.236.208.0/22 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.208.0/23 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.210.0/23 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.210.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
| 151.236.211.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
| 151.236.212.0/22 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.212.0/23 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.212.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
| 151.236.213.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
| 151.236.214.0/23 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | May 3, 2023 |
| 151.236.214.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
| 151.236.215.0/24 | AS39537 | RIPE | Route not advertised, DDoS mitigation only | SYSGROUP-API-MNT SYSGROUP-MNT | Jan 5, 2023 |
Whois
Registration for this announcement
- Range
- 151.
236. 208. 0/ 21 - Netname
- UK-SYSGROUP-20120814
- Registrant
- SysGroup plc
- Registrant country
- GB
- Organization
- SysGroup plc (ORG-SP277-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- May 26, 2020
- Updated
- Feb 16, 2025
- Maintainer
- SYSGROUP-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Aug 14, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sysgroup. com - Name
- Abuse-C Role
- Handle
- AR38690-RIPE