$ query “AS51409” --type=asn → 1 result(s)
AS51409 · SIPSYNERGY
Sipsynergy Limited
AS51409 is owned by Sipsynergy Limited and is a content network, established in the United Kingdom in 2010. The system announces 3 072 IPv4 addresses. Most of its address space is geolocated to the United Kingdom, with additional presence in Ireland. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇬🇧 United Kingdom
- Category
- Hosting
- Network Role
- Content Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- August 17, 2010
- Last Changed
- July 21, 2026
- Last Seen
- August 11, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 12 / 2
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 3 072
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Geolocated Countries
- 🇬🇧 United Kingdom (4 096 IPs), 🇮🇪 Ireland (2 048 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 4 upstreams providing transit
- Peers
- 82 networks exchanging traffic without transit
- Degree
- 86 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (12 total)
- 178.255.56.0/21 (2 048 addresses (/21 prefix))
- 185.41.224.0/22 (1 024 addresses (/22 prefix))