Data as of Nov 10, 2026
178.255.56.0/28
No anonymizer space · no proxy exits in 30 daysSipsynergy 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 |
|---|---|---|---|---|---|---|
| 178.255.56.0/21 | 2,048 | UK-SIPSYNERGY-20100701 | Sipsynergy Limited (ORG-SL834-RIPE) · GB | ALLOCATED PA | Feb 19, 2020 | noc@ |
| └ 178.255.56.0/28 | 16 | SIPSYNERGY_ | Edge Routing | ASSIGNED PA | Feb 20, 2012 | noc@ via UK-SIPSYNERGY-20100701 |
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 178.255.56.0/24
- Prefix
- 178.255.56.0/24
- Announced by
- AS51409 Sipsynergy Limited
- Type
- Business
- RPKI
- RPKI valid
- Netname
- UK-SIPSYNERGY-20100701
- Registrant
- Sipsynergy Limited
- RIR
- RIPE NCC
Origin network
AS51409
GB
- Name
- Sipsynergy Limited
- Type
- Business
- Registered
- Aug 17, 2010
- Domain
- sipsynergy.co.uk
- Website
- www.sipsynergy.co.uk
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 178.255.56.0/24
178.255.56.0/24
Routing history
- Pattern
- Stable
- First seen
- Feb 2014
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 178.255.56.0/24 | AS51409 | /24 | RIPE | RPKI valid |
| 178.255.56.0/21 | AS51409 | /21 | RIPE | Too specific |
IRR
Route objects on 178.255.56.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS51409 | RIPE | Sipsynergy | MNT-UK-SIPSYNERGY-1 | Feb 25, 2020 |
Whois
Registration for this announcement
- Range
- 178.
255. 56. 0/ 21 - Netname
- UK-SIPSYNERGY-20100701
- Registrant
- Sipsynergy Limited
- Registrant country
- GB
- Organization
- Sipsynergy Limited (ORG-SL834-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Feb 19, 2020
- Updated
- Feb 19, 2020
- Maintainer
- mnt-uk-sipsynergy-1
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Jul 1, 2010
- Status
- assigned
Report abuse
Abuse contact
- noc@
sipsynergy. co. uk - Name
- Abuse contact
- Handle
- ACRO26978-RIPE