HomePrefix Lookup209.103.128.0/20

209.103.128.0/20

🇺🇸
IPv4ARINannouncedAS12129123NET - 123.Net, Inc.No ROA
CIDR
209.103.128.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Rochester Hills
RIR
ARIN
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
209.103.128.0/20AS12129123NET - 123.Net, Inc.No ROA—6/1/2026
Origin ASN
AS12129
123NET - 123.Net, Inc.
Geolocation
Country🇺🇸United StatesUS
RegionMichigan
CityRochester Hills
Coordinates42.6507, -83.1671 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/209.103.128.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/209.103.128.0/20" | jq
External Links
RIPEstat Hurricane Electric BGP