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
27,816
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
7,358
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
47,626
NL
3,128
IT
2,591
ES
2,566
DE
2,434
GB
2,285
Anycast
1,821
JP
1,641
CO
849
AU
844
BR
800
GU
746

Top Open Ports

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

Port Open IPs
179 6,714
40000 2,751
443 2,735
60000 2,538
80 2,013
22 1,212
2000 895
5060 619
8443 493
8080 392
21 359
53 330
25 304
10000 279
44818 278

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.