HomePrefix Lookup208.31.8.0/21

208.31.8.0/21

🇨🇦
IPv4ARINannouncedAS21547OXNET - FirstLight Fiber, Inc. RPKI Invalid
CIDR
208.31.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇦 Canada
City
Montreal
RIR
ARIN
Status
announced
Allocated
-
AS0 discard ROA — upstream RPKI inconsistency

The only ROA covering this prefix names AS0, which means the issuing RIR has published the prefix as “not routable by any AS” (RFC 6483). If the RIR’s allocation records still point to a live operator, the ROA and the RDAP registration disagree — this is an upstream inconsistency in the issuing RIR’s own publications, not necessarily a hijack.

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
208.31.8.0/21AS21547OXNET - FirstLight Fiber, Inc. Invalid—5/31/2026

Covering Prefix

9 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
208.0.0.0/11AS174COGENT-174 - Cogent Communications, LLCNo ROA—5/31/2026
208.31.9.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.10.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.11.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.12.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.13.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.14.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.15.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026
208.31.8.0/24AS174COGENT-174 - Cogent Communications, LLC Invalid—5/31/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
208.31.8.0/21AS0/21arin
Origin ASN
AS21547
OXNET - FirstLight Fiber, Inc.
Geolocation
Country🇨🇦CanadaCA
RegionQuebec
CityMontreal
Coordinates45.5019, -73.5674 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/208.31.8.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/208.31.8.0/21" | jq
External Links
RIPEstat Hurricane Electric BGP