HomePrefix Lookup37.18.136.0/21

37.18.136.0/21

🇮🇲
IPv4RIPENCCallocatedAS8680SURE-International-Limited Sure (Guernsey) Limited RPKI Valid
CIDR
37.18.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇮🇲 Isle of Man
City
Douglas
RIR
RIPENCC
Status
allocated
Allocated
12/20/2011

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
37.18.136.0/21AS8680SURE-International-Limited Sure (Guernsey) Limited Valid
RIPE
5/30/2026

Covering Prefix

4 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
37.18.136.0/23AS8680SURE-International-Limited Sure (Guernsey) Limited Valid—5/30/2026
37.18.138.0/23AS8680SURE-International-Limited Sure (Guernsey) Limited Valid—5/30/2026
37.18.140.0/23AS8680SURE-International-Limited Sure (Guernsey) Limited Valid—5/30/2026
37.18.142.0/23AS8680SURE-International-Limited Sure (Guernsey) Limited Valid—5/30/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
37.18.136.0/21AS8680/24ripe

IRR Route Objects

1
OriginRegistryMaintainerModified
AS8680RIPEMNT-AS86801/11/2012

More Specific Prefixes

17
PrefixASCountryStatus
37.18.138.0/24🇮🇲IMassigned
37.18.136.0/24🇮🇲IMassigned
37.18.139.0/24🇮🇲IMassigned
37.18.137.0/24🇮🇲IMassigned
37.18.140.0/24🇮🇲IMassigned
37.18.141.0/24🇮🇲IMassigned
37.18.142.128/25🇮🇲IMassigned
37.18.142.64/26🇮🇲IMassigned
37.18.143.0/27🇮🇲IMassigned
37.18.143.64/27🇮🇲IMassigned
37.18.142.48/28🇮🇲IMassigned
37.18.142.16/28🇮🇲IMassigned
37.18.143.32/28🇮🇲IMassigned
37.18.143.96/28🇮🇲IMassigned
37.18.142.32/28🇮🇲IMassigned
37.18.143.48/28🇮🇲IMassigned
37.18.142.0/28🇮🇲IMassigned
Origin ASN
AS8680
SURE-International-Limited Sure (Guernsey) Limited
Geolocation
Country🇮🇲Isle of ManIM
RegionDouglas
CityDouglas
Coordinates54.1461, -4.4799 ↗
Abuse Contact
API
Open
GEThttps://api.ipctl.io/v1/prefix/37.18.136.0/21

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/37.18.136.0/21" | jq
External Links
RIPEstat Hurricane Electric BGP