HomeASN LookupAS25577

AS25577

🇬🇧

C4L-AS MAINFRAME & CYBERNETIC SYSTEMS LIMITEDORG-MCSL9-RIPE

RIPENCCallocated
Announced Prefixes (BGP)
56total
55 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)49,664
Announced (BGP)55,808
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)7.9×10^28
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
5
Country
🇬🇧 GB
RIR
RIPENCC
Status
allocated
Allocated
1/15/2003

Announced Prefixes

(BGP)56
|
Prefix
RPKI
IRR
Last Seen
5.133.184.0/22
 Valid
RIPE
5/20/2026
5.133.188.0/23
No ROA
RIPE
5/20/2026
5.133.191.0/24
No ROA
RIPE
5/20/2026
31.3.208.0/24
 Valid
RIPE
5/20/2026
31.3.211.0/24
No ROA
RIPE
5/20/2026
31.3.212.0/23
No ROA
RIPE
5/20/2026
31.3.221.0/24
No ROA
RIPE
5/20/2026
31.3.223.0/24
No ROA
RIPE
5/20/2026
37.58.24.0/22
No ROA
RIPE
5/20/2026
37.58.29.0/24
No ROA
RIPE
5/20/2026
1–10 of 56
1 / 6

Allocated Prefixes

(RIR)46
Prefix
Country
RIR
Status
5.133.184.0/22🇬🇧 GBRIPENCCallocated
5.133.188.0/23🇬🇧 GBRIPENCCallocated
5.133.191.0/24🇬🇧 GBRIPENCCallocated
31.3.208.0/24🇬🇧 GBRIPENCCallocated
31.3.211.0/24🇬🇧 GBRIPENCCallocated
31.3.212.0/23🇬🇧 GBRIPENCCallocated
31.3.221.0/24🇬🇧 GBRIPENCCallocated
31.3.223.0/24🇬🇧 GBRIPENCCallocated
37.58.24.0/22🇬🇧 GBRIPENCCallocated
37.58.29.0/24🇬🇧 GBRIPENCCallocated
1–10 of 46
1 / 5

Downstream Customers(1)

ASNName
AS44934🇬🇧ARACHSYS Arachsys Internet Services Ltd
ASPA
No ASPA0 upstreams, 1 downstream
Listed as Upstream Provider by
1 ASN
View full ASPA details →
Abuse Contact
External Links
RIPE WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/25577

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/25577" | jq