HomePrefix Lookup128.220.0.0/16

128.220.0.0/16

🇺🇸
IPv4ARINallocatedAS5723JHU - Johns Hopkins University RPKI Valid
CIDR
128.220.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Baltimore
RIR
ARIN
Status
allocated
Allocated
3/24/1987

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
128.220.0.0/16AS5723JHU - Johns Hopkins University Valid
ARINRADB
5/31/2026

RPKI ROAs

2
PrefixOriginMax LengthTrust Anchor
128.220.0.0/16AS5723/24arin
128.220.0.0/16AS198949/24arin

IRR Route Objects

4
OriginRegistryMaintainerModified
AS5723ARINMNT-JHU-Z6/22/2021
AS198949ARINMNT-JHU-Z6/22/2021
AS5723RADBMAINT-AS1088611/13/2023
AS198949RADBMAINT-AS19894911/13/2023
Origin ASN
AS5723
JHU - Johns Hopkins University
Geolocation
Country🇺🇸United StatesUS
RegionMaryland
CityBaltimore
Coordinates39.3299, -76.6205 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/128.220.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/128.220.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP