All ASNs

Autonomous System details for AS151397

AS151397
China Telecom • chinatelecom.cn

AS151397 — China Telecom

AS Name
CT-ESURFINGCLOUD-CDN
Country
China (CN)
Website
Number of IPv4
2,560
Number of IPv6
4.84 × 1024
ASN type
ISP
Status
Allocated
Registry
APNIC
Allocated
June 06, 2023
Last updated
June 06, 2023

IP Ranges

10 IPv4 prefixes, 4 IPv6 prefixes
Prefix Company Number of IPs
193.119.8.0/24 China Telecom 256
193.119.10.0/24 China Telecom 256
193.119.12.0/24 China Telecom 256
193.119.13.0/24 China Telecom 256
193.119.15.0/24 China Telecom 256
193.119.20.0/24 China Telecom 256
193.119.21.0/24 China Telecom 256
193.119.25.0/24 China Telecom 256
193.119.30.0/24 China Telecom 256
203.86.116.0/24 Chinatelecomglobal Office Blocks 256
240e:983:2010::/48 Chinatelecom IPv6 address for IDC & Cloud service 1.21 × 1024
240e:983:2013::/48 Chinatelecom IPv6 address for IDC & Cloud service 1.21 × 1024
240e:983:2020::/48 Chinatelecom IPv6 address for IDC & Cloud service 1.21 × 1024
240e:983:2030::/48 Chinatelecom IPv6 address for IDC & Cloud service 1.21 × 1024

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS151397

0 peers

AS151397 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS151397

3 upstreams
AS21859 AS23764 AS138915

AS151397 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS151397 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS151397

0 downstreams

AS151397 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

Check your IP address details

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

Use the CIDR to IP Range Converter

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

Look up an IP address’s hostname

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.

Expand or collapse IPv6 addresses