Check-Host.cc

Autonomous System

AS3356 · Lumen AS3356

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

Announced IPs
34.66M
IPv4
IPv4 Prefixes
2,038
IPv6 Prefixes
159
Hosted Domains
27,968
resolve into this AS
Peers
83
Customers
6,645

AS Profile

AS Name
Lumen AS3356
Also known as
CenturyLink; Level3;
AS Type
NSP
Scope
Global
Traffic
100+Tbps
RIR
ARIN
Country
US
Allocated
2000-03-10

RPKI Validity

Total ROAs
8,598
Valid Prefixes
237
NotFound
1,960
Announced (BGP)
2,197
RPKI Coverage
10.8%

Geographic Footprint

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

US
47,993
NL
3,159
IT
2,624
ES
2,590
DE
2,436
GB
2,299
Anycast
1,826
JP
1,657
CO
857
AU
855
BR
803
GU
748

Top Open Ports

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

Port Open IPs
179 6,924
40000 2,836
443 2,816
60000 2,623
80 2,089
22 1,246
2000 921
5060 642
8443 507
8080 399
21 377
53 333
25 312
10000 290
44818 283

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.