AS25

BitTorrent
Stub AS
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Summary

IP address summary information
Name	University of California at Berkeley
Country	United States
Website	host.io/berkeley.edu·berkeley.edu
Hosted domains	266
IPv4 addresses	199,680
IPv6 addresses	7.92 × 10²⁸
ASN type	Education
Registry	ARIN
Allocated	42 years ago on Aug 3, 1984
Updated	2 years ago on Dec 14, 2023

Ranking

#7,283

Overall rank

among 74,815 networks

Traffic

#3,591

Infrastructure

#13,031

#1,266inUnited States

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

United States
100%

Held location over 90 days: 100%
Held location over 1 year: 97%
Median days between moves: 492 days
Geolocation scope: City

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
128.32.0.0/16	University of California at Berkeley	65,536
136.152.0.0/16	University of California at Berkeley	65,536
169.229.0.0/16	University of California at Berkeley	65,536
169.229.176.0/20	University of California at Berkeley	4,096
208.68.240.0/22	University of California at Berkeley	1,024
192.150.186.0/23	University of California at Berkeley	512
192.154.4.0/23	University of California at Berkeley	512
67.21.36.0/24	University of California at Berkeley	256
192.12.234.0/24	University of California at Berkeley	256
192.35.209.0/24	University of California at Berkeley	256

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 266 domain names hosted across 104 IP addresses on this ASN.

IP Address	Domain	Count
169.229.226.23		56
128.32.213.148		15
128.32.139.28		11
208.68.240.115		8
128.32.189.107		7

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs14
University13
Restaurant1

Category	In AS25	Example IP
University	13	136.152.208.13
Restaurant	1	136.152.209.33

New

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Places

Peers

There are 1 peers for this ASN.

ASN	Name	Rank
AS2152	CENIC

Upstreams

There are 1 upstreams for this ASN.

ASN	Name	Rank
AS2152	CENIC

Downstreams

There are 0 downstreams for this ASN.

No downstreams found.

Pingable IPs

456 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
169.229.112.1 Ping	AS25University of California at Berkeley	2.99ms from San Jose, US
128.32.171.202 Ping	AS25University of California at Berkeley	2.72ms from San Jose, US
128.32.247.110 Ping	AS25University of California at Berkeley	2.84ms from San Jose, US
136.152.110.165 Ping	AS25University of California at Berkeley	2.38ms from San Jose, US
128.32.104.60 Ping	AS25University of California at Berkeley	2.23ms from San Jose, US
169.229.86.1 Ping	AS25University of California at Berkeley	3.18ms from San Jose, US
169.229.73.1 Ping	AS25University of California at Berkeley	2.91ms from San Jose, US
128.32.225.129 Ping	AS25University of California at Berkeley	2.21ms from San Jose, US
128.32.166.13 Ping	AS25University of California at Berkeley	2.08ms from San Jose, US
169.229.198.129 Ping	AS25University of California at Berkeley	2.21ms from San Jose, US

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS25


128.32.255.173	Berkeley, United States
128.32.255.171	Berkeley, United States
2607:f140:ffff:b5::3	San Jose, United States
2607:f140:ffff:b6::3	San Jose, United States
169.229.63.195	Berkeley, United States
128.32.255.45	Berkeley, United States
2607:f140:ffff:44::2	San Jose, United States
128.32.243.33	Berkeley, United States
128.32.255.51	Berkeley, United States
128.32.255.49	Berkeley, United States

Important routers in AS25

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.Traceroute →

$ traceroute -a -n -q1 -f4 128.32.177.151

traceroute to 128.32.177.151 (128.32.177.151): 64 hops max, 52 byte packets

4 [AS12956] 190.98.170.73 0.341 ms

5 *

6 *

7 [AS3356] 4.35.156.66 30.294 ms

8 *

9 *

10 *

11 [AS2152] 137.164.11.95 39.773 ms

12 [AS2152] 137.164.3.27 63.705 ms

13 *

14 [AS25] 128.32.0.119 39.938 ms

15 [AS25] 128.32.177.151 40.205 ms

Measurement taken from

IPinfo ProbeNet in Dallas, US

On October 9, 2026

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS25 at robtex.

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AS25

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS25

Important routers in AS25

Traceroute

Related Networks

AS1449

AS15083

AS16831

AS21511

AS32124

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

IP Ranges

Important routers in AS25

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

Places

AS1449

AS15083

AS16831

AS21511

AS32124

AS395593