HomePrefix Lookup208.66.128.0/21

208.66.128.0/21

🇺🇸
IPv4ARINallocatedAS168425DL-AS - 5Nines Data, LLCNo ROA
CIDR
208.66.128.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Madison
RIR
ARIN
Status
allocated
Allocated
4/18/2006

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
208.66.128.0/21AS168425DL-AS - 5Nines Data, LLCNo ROA
ARINRADB
6/1/2026

IRR Route Objects

3
OriginRegistryMaintainerModified
AS16842ARINMNT-5DL7/21/2025
AS7029RADBMAINT-AS702911/13/2023
AS16842RADBMAINT-AS5359711/13/2023
Origin ASN
AS16842
5DL-AS - 5Nines Data, LLC
Geolocation
Country🇺🇸United StatesUS
RegionWisconsin
CityMadison
Coordinates43.0729, -89.3881 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/208.66.128.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/208.66.128.0/21" | jq
External Links
RIPEstat Hurricane Electric BGP