HomePrefix Lookup128.4.0.0/16

128.4.0.0/16

🇺🇸
IPv4ARINallocatedAS2UDEL-DCN - University of Delaware RPKI Valid
CIDR
128.4.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Newark
RIR
ARIN
Status
allocated
Allocated
1/10/1991

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
128.4.0.0/16AS2UDEL-DCN - University of Delaware Valid
RADB
6/1/2026

RPKI ROAs

2
PrefixOriginMax LengthTrust Anchor
128.4.0.0/16AS2/17arin
128.4.0.0/16AS34/17arin

IRR Route Objects

1
OriginRegistryMaintainerModified
AS2RADBMAINT-AS375411/13/2023
Origin ASN
AS2
UDEL-DCN - University of Delaware
Geolocation
Country🇺🇸United StatesUS
RegionDelaware
CityNewark
Coordinates39.6769, -75.7437 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/128.4.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/128.4.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP