All ASNs

Autonomous System details for AS31822

AS31822
City University of New York • cuny.edu

AS31822 — City University of New York

AS Name
CITY-UNIVERSITY-OF-NEW-YORK
Country
United States (US)
Website
Number of IPv4
659,712
Number of IPv6
0
ASN type
Education
Status
Assigned
Registry
ARIN
Allocated
January 02, 2004
Last updated
September 20, 2023

IP Ranges

12 IPv4 prefixes
Prefix Company Number of IPs
128.228.0.0/16 Mikrotec Internet Services 65,536
134.74.0.0/16 Krypt Technologies 65,536
146.95.0.0/16 Rolf C. Hagen Inc. 65,536
146.96.0.0/16 TFB NET 65,536
146.111.0.0/16 Mikrotec Internet Services 65,536
146.245.0.0/16 SQUAW VALLEY SKI CORP. 65,536
148.84.0.0/16 Care Everywhere 65,536
149.4.0.0/16 Lixar 65,536
150.210.0.0/16 The Cushman School 65,536
163.238.0.0/16 Heart of Iowa Communications Cooperative 65,536
198.61.16.0/20 Computer Science Corporation 4,096
198.180.141.0/24 Internet Montreal 256

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 AS31822

0 peers

AS31822 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 AS31822

3 upstreams

AS31822 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS31822 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS31822

0 downstreams

AS31822 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.

CIDR to IP Range Converter (IPv4 and IPv6)

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

IP to Hostname/rDNS Lookup

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

IPv6 Expander/Collapser

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