HomePrefix Lookup157.203.0.0/16

157.203.0.0/16

🇬🇧
IPv4RIPENCCallocatedAS21369SEMA-UK-AS Atos IT Services UK Ltd RPKI Valid
CIDR
157.203.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇬🇧 United Kingdom
City
Winnersh
RIR
RIPENCC
Status
allocated
Allocated
4/7/2004

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

46 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
157.203.120.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.42.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.176.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.36.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.58.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.178.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.52.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.60.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.180.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.40.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.48.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.242.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.62.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.56.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.254.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.92.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.6.0/23AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.61.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.62.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.120.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.176.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.177.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.178.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.179.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.180.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.181.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.242.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.243.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.254.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.255.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.6.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.7.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.36.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.37.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.40.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.41.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.42.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.43.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.48.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.49.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.52.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.53.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.56.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.57.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.59.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026
157.203.60.0/24AS21369SEMA-UK-AS Atos IT Services UK Ltd Valid—5/31/2026

IRR Route Objects

2
OriginRegistryMaintainerModified
AS198949RADBMAINT-AS19894911/13/2023
AS21369RIPESEMA-UK-AS-MNT8/8/2005
Origin ASN
AS21369
SEMA-UK-AS Atos IT Services UK Ltd
Geolocation
Country🇬🇧United KingdomGB
RegionEngland
CityWinnersh
Coordinates51.4385, -0.8900 ↗
Abuse Contact
API
Open
GEThttps://api.ipctl.io/v1/prefix/157.203.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/157.203.0.0/16" | jq
External Links
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