HomePrefix Lookup100.42.0.0/20

100.42.0.0/20

🇺🇸
IPv4ARINallocatedAS36426ISOTRASN - IsoTropic Networks, Inc.No ROA
CIDR
100.42.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Lake Geneva
RIR
ARIN
Status
allocated
Allocated
11/16/2011

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
100.42.0.0/20AS36426ISOTRASN - IsoTropic Networks, Inc.No ROA
RADB
5/31/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS36426RADBMAINT-RR11/13/2023
Origin ASN
AS36426
ISOTRASN - IsoTropic Networks, Inc.
Geolocation
Country🇺🇸United StatesUS
RegionWisconsin
CityLake Geneva
Coordinates42.6179, -88.4390 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/100.42.0.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/100.42.0.0/20" | jq
External Links
RIPEstat Hurricane Electric BGP