HomePrefix Lookup204.121.0.0/16

204.121.0.0/16

🇺🇸
IPv4ARINallocatedAS68LANL-NM - Los Alamos National Laboratory RPKI Valid
CIDR
204.121.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Los Alamos
RIR
ARIN
Status
allocated
Allocated
8/12/1994

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
204.121.0.0/16AS68LANL-NM - Los Alamos National Laboratory Valid
ARIN
5/31/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
204.121.0.0/16AS68/16arin

IRR Route Objects

1
OriginRegistryMaintainerModified
AS68ARINMNT-LANL-2-Z11/18/2025
Origin ASN
AS68
LANL-NM - Los Alamos National Laboratory
Geolocation
Country🇺🇸United StatesUS
RegionNew Mexico
CityLos Alamos
Coordinates35.8817, -106.3010 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/204.121.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/204.121.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP