iamroot.tech
Toggle navigation
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
All tools
Page nav
Page nav
iamroot.tech
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
CTRL+D to bookmark
Add to homescreen
×
Tap the 'Share button' at the bottom of the screen:
Scroll down the list, and select 'Add to Home Screen':
Tap the menu icon (3 dots - upper right-hand corner):
and select 'Add to homescreen'.:
ASN database
You may find these sub-pages interesting as well:
Top ASN's by country
Directory of +1.200 verified looking glass url's
NEW: ASN database statistics
Related tools
DNS lookup
DNS lookup / nslookup / DIG of DNS records. An online tool for DNS lookups. By default recursive lookups querying the authoritative name servers. Lookups on specific DNS resolvers are also possible. Additionally, it will look up secondary records and output a full log of what was done on a technical level.
WHOIS / RDAP lookup
Perform WHOIS and/or RDAP lookups on domains, IP addresses, and ASNs. Will output all available technical info, contact info, etc.
Reverse DNS
Perform reverse DNS (rDNS/PTR) lookups of any IP.
CIDR calculator
beta
IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.
What is my IPv4 and IPv6?
Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.
GeoIP location
Online tool GeoIP location of any IP and/or domain.
World map, day/night + local time
beta
Beautiful day/night map of the world, with markup of all major cities including local date and time.
Result
AS2153, California State University, Office of the Chancellor
Last update of data:
29-04-2024 17:24 UTC
ASN:
AS2153 (CSUNET-NE)
Country:
US - United States (North America)
Org.:
California State University, Office of the Chancellor
https://www.calstate.edu
Social media:
@instagram
@twitter/X
@facebook
Stats:
Peers
31
IX'es
-
Prefixes
5
IPv4
2.304
IPv6
-
Contact:
California State University, Office of the Chancellor
401 Golden Shore
90802
Long Beach
US
+1-562-951-8500
CSU DNS Administrator
wedns@calstate.edu
+1-562-951-8500
History
Date
Peers
IX'es
Prefixes
IPv4
IPv6
Before 05-02-2024
33
-
5
2.304
-
05-02-2024
-1
-
-
-
-
29-04-2024
-1
-
-
-
-
Current
31
-
5
2.304
-
Peers
Country
Relationship
ASN
Organization
Peers
Prefix'es
Australia
Upstream
AS7575
Australian Academic and Research Network
1.227
149
Japan
Upstream
AS2907
for assignment to JPNIC members
138
528
United States
Upstream
AS11537
Internet2
124
11
United States
Upstream
AS22388
Indiana University
9
1
United States
Upstream
AS293
ESnet
179
17
United States
Downstream
AS257
Navy Network Information Center (NNIC)
2
3
United States
Downstream
AS2152
California State University, Office of the Chancellor
114
112
United States
Downstream
AS11096
FloridaNet
59
29
United States
Downstream
AS1224
University of Illinois
4
3
United States
Downstream
AS131
University of California, Santa Barbara
2
6
United States
Downstream
AS14041
University Corporation for Atmospheric Research
36
7
United States
Downstream
AS195
San Diego Supercomputer Center
11
18
United States
Downstream
AS22323
University of California, Merced
2
1
United States
Downstream
AS24
National Aeronautics and Space Administration
8
1
United States
Downstream
AS26397
The Regents of the University of California - University of California, San Diego.
2
3
United States
Downstream
AS299
University of California, Irvine
2
5
United States
Downstream
AS31
California Institute of Technology
4
5
United States
Downstream
AS32
Stanford University
3
5
United States
Downstream
AS32361
UltraLight
3
6
United States
Downstream
AS396310
San Diego State University
2
2
United States
Downstream
AS40498
New Mexico Lambda Rail, Inc.
13
13
United States
Downstream
AS4600
University of Oregon
8
1
United States
Downstream
AS47
University of Southern California
3
6
United States
Downstream
AS52
University of California, Los Angeles
2
12
United States
Downstream
AS5653
University of California San Francisco
3
3
United States
Downstream
AS567
Los Nettos
9
-
United States
Downstream
AS5739
University of California, Santa Cruz
2
5
United States
Downstream
AS6106
University of California, Riverside
3
4
United States
Downstream
AS6192
University of California, Davis
4
6
United States
Downstream
AS7377
University of California, San Diego
3
18
United States
Downstream
AS9
Carnegie Mellon University
9
11
- - show more (+20 entries) - -
- - show less (-20 entries) - -
Announced (uniq) prefixes
Country
ASN
Announced prefix
Description
Size
United States
AS2153
137.164.17.0/24
California State University, Office of the Chancellor
256
United States
AS2153
137.164.25.0/24
California State University, Office of the Chancellor
256
United States
AS2153
137.164.26.0/23
California State University, Office of the Chancellor
512
United States
AS2153
137.164.28.0/24
California State University, Office of the Chancellor
256
United States
AS2153
146.244.204.0/22
California State University, Office of the Chancellor
1.024
Log
000
+000
Parse input (ASN)
000
+000
Search database for 'AS2153'
003
+002
1 ASN's found
003
+000
Done
003
+000
Load details of AS2153
012
+009
5 prefixes found
030
+018
31 peers found
032
+002
No matching IX connections found!
034
+002
4 links loaded, 4 verified
035
+001
3 historical items loaded
035
+000
Done