72.252.0.0/16 Columbus Networks USA, Inc.
Announced by AS23520 Columbus Networks USA, Inc. RPKI not found Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 72.252.0.0/16
Prefix
Origin
AS23520 LIBERTY-NETWORKS
RPKI
RPKI not found
Size
65,536 addresses
Less specific
none
More specifics
47
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 08:02 UTC
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 72.252.0.0/16 | AS23520 LIBERTY-NETWORKS | RADB | COLUMBUS NETWORKS BLOCK | MAINT-AS23520 |
More specific
Prefixes inside 72.252.0.0/16
47 announced prefixes fall inside this one.
Show the 47 prefixes
72.252.0.0/24 AS52468 AS5246872.252.1.0/24 AS52468 AS5246872.252.2.0/24 AS52468 AS5246872.252.3.0/24 AS52468 AS5246872.252.4.0/22 AS23520 LIBERTY-NETWORKS72.252.4.0/24 AS396899 ASN-NGC72.252.8.0/21 AS27781 AS2778172.252.16.0/21 AS23520 LIBERTY-NETWORKS72.252.24.0/24 AS11580 ISLAND-NETWORKS-LTD72.252.25.0/24 AS30689 FLOW-NET72.252.26.0/23 AS30689 FLOW-NET72.252.28.0/22 AS30689 FLOW-NET72.252.32.0/21 AS30689 FLOW-NET72.252.32.0/24 AS30689 FLOW-NET72.252.72.0/21 AS23520 LIBERTY-NETWORKS72.252.80.0/21 AS23520 LIBERTY-NETWORKS72.252.96.0/22 AS14754 AS1475472.252.100.0/22 AS14754 AS1475472.252.104.0/21 AS30689 FLOW-NET72.252.112.0/21 AS30689 FLOW-NET72.252.112.0/24 AS30689 FLOW-NET72.252.113.0/24 AS30689 FLOW-NET72.252.120.0/21 AS30689 FLOW-NET72.252.128.0/21 AS30689 FLOW-NET72.252.136.0/21 AS30689 FLOW-NET72.252.138.0/24 AS30689 FLOW-NET72.252.144.0/21 AS30689 FLOW-NET72.252.152.0/21 AS30689 FLOW-NET72.252.160.0/21 AS30689 FLOW-NET72.252.168.0/21 AS30689 FLOW-NET72.252.170.0/24 AS30689 FLOW-NET72.252.176.0/20 AS30689 FLOW-NET72.252.176.0/21 AS30689 FLOW-NET72.252.176.0/22 AS30689 FLOW-NET72.252.180.0/22 AS30689 FLOW-NET72.252.184.0/21 AS30689 FLOW-NET72.252.184.0/22 AS30689 FLOW-NET72.252.188.0/22 AS30689 FLOW-NET72.252.192.0/21 AS30689 FLOW-NET72.252.200.0/21 AS30689 FLOW-NET72.252.208.0/21 AS30689 FLOW-NET72.252.216.0/21 AS30689 FLOW-NET72.252.224.0/21 AS30689 FLOW-NET72.252.232.0/21 AS30689 FLOW-NET72.252.240.0/21 AS30689 FLOW-NET72.252.247.0/24 AS30689 FLOW-NET72.252.248.0/21 AS30689 FLOW-NET