AS5503 — RMIFL

Network type: education

AS5503 announces 40 IPv4 prefixes covering 99,328 addresses and 1 IPv6 prefixes.

About this network

RMIFL belongs to RM Education Ltd, part of the British company RM plc. RM is a long-running supplier of IT and connectivity to UK education, and it has operated as an ISP for schools since the mid-1990s.

What it's used for

• Broadband, leased lines and filtered internet access delivered to UK schools, colleges and multi-academy trusts.
• Safeguarding and filtering infrastructure sits inline with that access, so the AS also carries RM's own content-filtering and security platforms.

Notable

• Although the holder is a commercial company, the address space overwhelmingly serves educational end users. Downstream, these addresses look like school networks, not homes or a datacentre.
• RM peers with the platforms schools actually depend on, and connects into the UK academic networking world, which is why its routing profile looks unlike a general-purpose consumer ISP.

Interesting

• RM began in 1973 as Research Machines, selling microcomputers to schools, and moved into school networking and then connectivity. The AS is a direct descendant of that pivot from hardware to services.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 62.171.192.0/19
• 62.171.224.0/22
• 62.171.252.0/22
• 185.192.228.0/22
• 194.154.0.0/20
• 194.154.16.0/21
• 194.238.32.0/21
• 194.238.48.0/21
• 194.238.60.0/22
• 194.238.64.0/21
• 213.18.248.0/21
• 217.177.16.0/20
• 217.177.36.0/22
• 217.177.56.0/21
• 217.177.64.0/21
• 217.177.76.0/22
• 217.177.88.0/21
• 217.179.0.0/22
• 217.179.8.0/21
• 217.179.16.0/20
• 217.179.32.0/20
• 217.179.52.0/22
• 217.179.60.0/22
• 217.179.64.0/21
• 217.179.76.0/22
• 217.179.84.0/22
• 217.179.92.0/22
• 217.179.96.0/20
• 217.179.112.0/21
• 217.179.120.0/22
• 217.179.192.0/20
• 217.179.208.0/21
• 217.179.216.0/22
• 217.179.224.0/22
• 217.179.232.0/21
• 217.179.240.0/20
• 217.180.24.0/21
• 217.180.32.0/22
• 217.180.48.0/22
• 217.181.0.0/18
• 2a02:fb0::/32

Upstream networks

• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS9002 RETN Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS48185 team.blue NV
• AS50300 CustodianDC Limited
• AS33891 Core-Backbone GmbH
• AS29075 IELO-LIAZO SERVICES SAS
• AS17639 Converge ICT Solutions Inc.
• AS3216 PJSC "Vimpelcom"
• AS37100 SEACOM Limited
• AS3741 Dimension Data
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS13030 Init7 (Switzerland) Ltd.
• AS213241 TECHIT.BE SRL

Downstream networks

• AS51704 RM Education Ltd
• AS29626 Staffordshire County Council

Adjacent networks

• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS9002 RETN Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS51704 RM Education Ltd
• AS50304 Blix Solutions AS
• AS48362 Stadtwerke Feldkirch
• AS57463 NetIX Communications JSC
• AS3741 Dimension Data
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS17639 Converge ICT Solutions Inc.
• AS3216 PJSC "Vimpelcom"
• AS29075 IELO-LIAZO SERVICES SAS
• AS12552 GlobalConnect AB
• AS33891 Core-Backbone GmbH
• AS29626 Staffordshire County Council
• AS13030 Init7 (Switzerland) Ltd.
• AS213241 TECHIT.BE SRL

Internet exchanges

• LINX LON1 — London, United Kingdom
• London Network Access Point — London, United Kingdom