Autonomous System
AS5503 RM Education Ltd
ISPActiveUnited KingdomRIPE
AS5503 (RMIFL) is an ISP network operated by RM Education Ltd in United Kingdom, registered with RIPE. It has 40 IPv4 prefixes with 99,328 addresses and 1 IPv6 prefix, which makes it the 2,333rd largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses99,328in 40 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#2,333of 82,141 active ASNs
Details
OrganizationRM Education Ltd
AS nameRMIFL
Websitelycatel.com
Country United Kingdom (GB)
Network typeISP
RegistryRIPE
Abuse contactabuse@ifl.net
Registered2002-08-20
Last updated2026-08-07
IPv4 prefixes
40 prefixes · 99,328 addresses| Network | Addresses | First – last address |
|---|---|---|
| 217.181.0.0/18 | 16,384 | 217.181.0.0 – 217.181.63.255 |
| 62.171.192.0/19 | 8,192 | 62.171.192.0 – 62.171.223.255 |
| 194.154.0.0/20 | 4,096 | 194.154.0.0 – 194.154.15.255 |
| 217.177.16.0/20 | 4,096 | 217.177.16.0 – 217.177.31.255 |
| 217.179.16.0/20 | 4,096 | 217.179.16.0 – 217.179.31.255 |
| 217.179.32.0/20 | 4,096 | 217.179.32.0 – 217.179.47.255 |
| 217.179.96.0/20 | 4,096 | 217.179.96.0 – 217.179.111.255 |
| 217.179.192.0/20 | 4,096 | 217.179.192.0 – 217.179.207.255 |
| 217.179.240.0/20 | 4,096 | 217.179.240.0 – 217.179.255.255 |
| 194.154.16.0/21 | 2,048 | 194.154.16.0 – 194.154.23.255 |
| 194.238.32.0/21 | 2,048 | 194.238.32.0 – 194.238.39.255 |
| 194.238.48.0/21 | 2,048 | 194.238.48.0 – 194.238.55.255 |
| 194.238.64.0/21 | 2,048 | 194.238.64.0 – 194.238.71.255 |
| 213.18.248.0/21 | 2,048 | 213.18.248.0 – 213.18.255.255 |
| 217.177.56.0/21 | 2,048 | 217.177.56.0 – 217.177.63.255 |
| 217.177.64.0/21 | 2,048 | 217.177.64.0 – 217.177.71.255 |
| 217.177.88.0/21 | 2,048 | 217.177.88.0 – 217.177.95.255 |
| 217.179.8.0/21 | 2,048 | 217.179.8.0 – 217.179.15.255 |
| 217.179.64.0/21 | 2,048 | 217.179.64.0 – 217.179.71.255 |
| 217.179.112.0/21 | 2,048 | 217.179.112.0 – 217.179.119.255 |
| 217.179.208.0/21 | 2,048 | 217.179.208.0 – 217.179.215.255 |
| 217.179.232.0/21 | 2,048 | 217.179.232.0 – 217.179.239.255 |
| 217.180.24.0/21 | 2,048 | 217.180.24.0 – 217.180.31.255 |
| 62.171.224.0/22 | 1,024 | 62.171.224.0 – 62.171.227.255 |
| 62.171.252.0/22 | 1,024 | 62.171.252.0 – 62.171.255.255 |
217.181.0.0/18 62.171.192.0/19 194.154.0.0/20 217.177.16.0/20 217.179.16.0/20 217.179.32.0/20 217.179.96.0/20 217.179.192.0/20 217.179.240.0/20 194.154.16.0/21 194.238.32.0/21 194.238.48.0/21 194.238.64.0/21 213.18.248.0/21 217.177.56.0/21 217.177.64.0/21 217.177.88.0/21 217.179.8.0/21 217.179.64.0/21 217.179.112.0/21 217.179.208.0/21 217.179.232.0/21 217.180.24.0/21 62.171.224.0/22 62.171.252.0/22
The 25 largest of 40. The API and the database have all of them.
IPv6 prefixes
1 prefix- 2a02:fb0::/32
2a02:fb0::/32
Query AS5503 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=AS5503&key=YOUR_API_KEY"Any address in its prefixes resolves to AS5503, with or without a key:
curl "https://api.ipapi.is/?q=217.181.0.1"