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
2,041
IPv6 Prefixes
160
Hosted Domains
29,672
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
7,367
Valid Prefixes
237
NotFound
1,964
Announced (BGP)
2,201
RPKI Coverage
10.8%

Geographic Footprint

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

US
51,880
NL
3,490
IT
2,895
ES
2,843
DE
2,464
GB
2,424
Anycast
1,864
JP
1,859
AU
945
CO
915
BR
831
GU
762

Top Open Ports

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

Port Open IPs
179 8,636
443 3,405
40000 3,385
60000 3,168
80 2,647
22 1,475
2000 1,121
5060 796
8443 636
8080 455
53 438
21 426
25 381
10000 345
44818 316

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.