Autonomous System
AS29107 Synapse Network LTD
ISPActiveUnited KingdomRIPE
AS29107 (SYNAPSE-AS) is an ISP network operated by Synapse Network LTD in United Kingdom, registered with RIPE. It has 23 IPv4 prefixes with 58,880 addresses and 2 IPv6 prefixes, which makes it the 4,050th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses58,880in 23 prefixes
IPv6 prefixes2≈ 2.4 × 10²⁴ addresses
Size rank#4,050of 82,200 active ASNs
Details
OrganizationSynapse Network LTD
AS nameSYNAPSE-AS
Websitesynapse.net.ua
Country United Kingdom (GB)
Network typeISP
RegistryRIPE
Abuse contactAbuse@synapse.net.ua
Registered2003-06-05
Last updated2026-09-24
IPv4 prefixes
23 prefixes · 58,880 addresses| Network | Addresses | First – last address |
|---|---|---|
| 178.54.0.0/17 | 32,768 | 178.54.0.0 – 178.54.127.255 |
| 92.249.64.0/18 | 16,384 | 92.249.64.0 – 92.249.127.255 |
| 77.87.144.0/22 | 1,024 | 77.87.144.0 – 77.87.147.255 |
| 77.87.148.0/22 | 1,024 | 77.87.148.0 – 77.87.151.255 |
| 194.0.88.0/22 | 1,024 | 194.0.88.0 – 194.0.91.255 |
| 195.69.84.0/22 | 1,024 | 195.69.84.0 – 195.69.87.255 |
| 193.201.80.0/23 | 512 | 193.201.80.0 – 193.201.81.255 |
| 194.0.88.0/23 | 512 | 194.0.88.0 – 194.0.89.255 |
| 194.0.90.0/23 | 512 | 194.0.90.0 – 194.0.91.255 |
| 195.69.84.0/23 | 512 | 195.69.84.0 – 195.69.85.255 |
| 195.69.86.0/23 | 512 | 195.69.86.0 – 195.69.87.255 |
| 91.216.176.0/24 | 256 | 91.216.176.0 – 91.216.176.255 |
| 141.98.109.0/24 | 256 | 141.98.109.0 – 141.98.109.255 |
| 178.54.4.0/24 | 256 | 178.54.4.0 – 178.54.4.255 |
| 178.54.5.0/24 | 256 | 178.54.5.0 – 178.54.5.255 |
| 178.54.6.0/24 | 256 | 178.54.6.0 – 178.54.6.255 |
| 178.54.7.0/24 | 256 | 178.54.7.0 – 178.54.7.255 |
| 178.54.8.0/24 | 256 | 178.54.8.0 – 178.54.8.255 |
| 178.54.9.0/24 | 256 | 178.54.9.0 – 178.54.9.255 |
| 178.54.10.0/24 | 256 | 178.54.10.0 – 178.54.10.255 |
| 178.54.11.0/24 | 256 | 178.54.11.0 – 178.54.11.255 |
| 178.54.120.0/24 | 256 | 178.54.120.0 – 178.54.120.255 |
| 178.54.121.0/24 | 256 | 178.54.121.0 – 178.54.121.255 |
178.54.0.0/17 92.249.64.0/18 77.87.144.0/22 77.87.148.0/22 194.0.88.0/22 195.69.84.0/22 193.201.80.0/23 194.0.88.0/23 194.0.90.0/23 195.69.84.0/23 195.69.86.0/23 91.216.176.0/24 141.98.109.0/24 178.54.4.0/24 178.54.5.0/24 178.54.6.0/24 178.54.7.0/24 178.54.8.0/24 178.54.9.0/24 178.54.10.0/24 178.54.11.0/24 178.54.120.0/24 178.54.121.0/24
IPv6 prefixes
2 prefixes- 2001:67c:2b14::/48
- 2a07:76c0:2::/48
2001:67c:2b14::/48 2a07:76c0:2::/48
Query AS29107 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS29107&key=YOUR_API_KEY"Any address in its prefixes resolves to AS29107, with or without a key:
curl "https://api.ipapi.is/?q=178.54.0.1"