English
IP range details
118.229.40.0/21
China Education and Research Network (CERNET)
Summary
AS Number
38255
Country
China
Name
China Education and Research Network (CERNET)
Description
China Education and Research Network (CERNET)
IP Addresses
2048
Parent Prefix
RIR
APNIC
Allocation Status
Inactive
Allocation Date
31st October 2007
Announcing ASNs
| Announced Prefix | Description | Country |
|---|---|---|
| 38255 | China Education and Research Network (CERNET) | CN |
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
