Check-Host.cc

Autonomous System

AS16866 · Columbia Networks Inc.

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Announced IPs
IPv4
IPv4 Prefixes
5
IPv6 Prefixes
1
Hosted Domains
2
resolve into this AS
Peers
1
Customers
4

AS Profile

AS Name
Columbia Networks Inc.
AS Type
Cable/DSL/ISP
Scope
Regional
IRR AS-SET
AS-TNI
RIR
ARIN
Country
CA
Allocated
2008-12-10

RPKI Validity

Total ROAs
28
Valid Prefixes
2
NotFound
4
Announced (BGP)
6
RPKI Coverage
33.3%

Geographic Footprint

Countries where this AS's scanned IPs are geolocated, by open-IP count.

CA
12

Top Open Ports

Most common open ports across IPs in this AS (last 30 days).

Port Open IPs
443 2
53 1

Upstreams

Tier-1 / transit-free network

CAIDA AS-Relationships sees no upstream transit provider for this ASN — either a tier-1 carrier, a settlement-free routing arrangement, or an ASN that peers privately. Tier-1s like AS174, AS3356, AS6939 also show empty here.