Check-Host.cc

Autonomous System

AS6461 · Zayo

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

Announced IPs
1.76M
IPv4
IPv4 Prefixes
231
IPv6 Prefixes
15
Hosted Domains
3,880
resolve into this AS
Peers
596
Customers
2,482

AS Profile

AS Name
Zayo
Also known as
AboveNet, MFNX
AS Type
NSP
Scope
Global
Traffic
20-50Tbps
IRR AS-SET
AS-MFNX
RIR
ARIN
Country
US
Allocated
1996-04-22

RPKI Validity

Total ROAs
2,061
Valid Prefixes
129
NotFound
117
Announced (BGP)
246
RPKI Coverage
52.4%

Geographic Footprint

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

US
5,436
CA
956
GB
448
BG
108
Anycast
43
FR
41
NL
11
DE
8
CH
3
JP
1
HK
1
IE
1

Top Open Ports

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

Port Open IPs
443 351
80 258
179 189
5060 81
22 75
2000 73
60000 72
25 61
40000 57
8443 53
8008 44
587 43
3128 41
8080 37
21 36

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.