Check-Host.cc

Autonomous System

AS4837 · China Unicom

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

Announced IPs
59.4M
IPv4
IPv4 Prefixes
1,197
IPv6 Prefixes
533
Hosted Domains
51,153
resolve into this AS
Peers
56
Customers
88

AS Profile

AS Name
China Unicom
Also known as
AS-CNCGROUP
AS Type
NSP
Scope
Regional
Traffic
10-20Tbps
IRR AS-SET
AS4837:AS-CNCGROUP
RIR
APNIC
Country
CN
Allocated
2001-09-17

RPKI Validity

Total ROAs
9,285
Valid Prefixes
1,478
NotFound
252
Announced (BGP)
1,730
RPKI Coverage
85.4%

Geographic Footprint

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

CN
416,472
HK
276
RU
6
SG
5

Top Open Ports

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

Port Open IPs
21 12,797
19000 11,180
443 8,919
80 8,686
22 4,168
8080 3,673
8443 3,538
8000 3,352
8088 3,186
8081 3,048
7547 2,988
8888 2,347
23 2,259
8001 2,203
8090 1,819