129.16.0.0/16

AS2841 · Chalmers University of Technology

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Sweden
Domain	chalmers.se
ASN	AS2841
Registry	RIPE
ID	CTH-NET

WHOIS Details

inetnum:        129.16.0.0 - 129.16.255.255
netname:        CTH-NET
descr:          Chalmers University Network
descr:          Chalmers University of Technology
descr:          Gothenburg, Sweden
country:        SE
org:            ORG-CUoT1-RIPE
admin-c:        CTH2-RIPE
tech-c:         CTH2-RIPE
status:         LEGACY
mnt-by:         CHALMERS-MNT
mnt-by:         SUNET-MNT
mnt-lower:      CHALMERS-MNT
mnt-lower:      SUNET-MNT
remarks:        ************************************************************
remarks:        * Abuse contact: abuse@chalmers.se In case of hack attacks,*
remarks:        * illegal activity, violation, scans, probes, spam, etc. *
remarks:        ************************************************************
created:        1970-01-01T00:00:00Z
last-modified:  2019-12-04T13:04:26Z
source:         RIPE
abuse-email:    abuse@chalmers.se
abuse-c:        CTH2-RIPE
abuse-org:      ORG-CUoT1-RIPE

organisation:   ORG-CUoT1-RIPE
org-name:       Chalmers University of Technology
country:        SE
org-type:       OTHER
address:        Chalmersplatsen 4
address:        Gothenburg
address:        SE-412 96
address:        SE
e-mail:         cth-nic@chalmers.se
mnt-ref:        CHALMERS-MNT
mnt-ref:        SUNET-MNT
mnt-by:         CHALMERS-MNT
abuse-c:        CTH2-RIPE
created:        2004-11-03T16:02:03Z
last-modified:  2022-12-01T17:09:56Z
source:         RIPE

role:           CHALMERS NIC
address:        Chalmers University of Technology
address:        IT Office, IT Infrastructure
address:        SE-412 96 Goteborg
address:        SWEDEN
phone:          +46 31 772 66 00
e-mail:         cth-nic@chalmers.se
notify:         cth-nic@chalmers.se
abuse-mailbox:  abuse@chalmers.se
admin-c:        PA1009-RIPE
tech-c:         PA1009-RIPE
tech-c:         KR427-RIPE
tech-c:         PO2901-RIPE
tech-c:         TW4830-RIPE
tech-c:         PF9131-RIPE
tech-c:         MB56999-RIPE
nic-hdl:        CTH2-RIPE
mnt-by:         CHALMERS-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2024-12-09T14:47:46Z
source:         RIPE

route:          129.16.0.0/16
descr:          CTH-NET
origin:         AS2841
mnt-by:         AS2841-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:33:28Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 129.0.0.0/8

Range	ASN	Company	Num of IPs
129.110.0.0/16	AS20162	University of Texas at Dallas	65,536
129.180.0.0/16	AS24101	University of New England	65,536
129.179.0.0/16	AS19812	BT Americas, Inc	65,536
129.137.0.0/16	AS20126	University of Cincinnati	65,536
129.34.0.0/16	AS1747	IBM	65,536
129.8.0.0/16	AS2037	California State University at Fresno	65,536
129.107.0.0/16	AS18515	University of Texas at Arlington	65,536
129.188.0.0/16	AS19773	Motorola, Inc.	65,536
129.88.0.0/16	AS1942	Universite Grenoble Alpes	65,536
129.4.0.0/16	AS1906	TRW Space and Defense Sector	65,536
129.81.0.0/16	AS10349	Tulane University	65,536
129.64.0.0/16	AS10561	Brandeis University	65,536
129.98.0.0/16	AS17324	Yeshiva University	65,536
129.138.0.0/16	AS17153	New Mexico Tech	65,536
129.125.0.0/16	AS1103	Groningen	65,536
129.99.0.0/16	AS10343	National Aeronautics and Space Administration	65,536
129.127.0.0/16	AS1851	University of Adelaide	65,536
129.116.0.0/16	AS18	University of Texas at Austin	65,536
129.126.0.0/16	AS17547	M1 NET LTD	65,536
129.235.0.0/16	AS16509	Amazon.com, Inc.	65,536
129.47.0.0/16	AS16509	Amazon Technologies Inc.	65,536
129.119.0.0/16	AS1832	Southern Methodist University	65,536
129.93.0.0/16	AS11546	The Board of Regents of the University of Nebraska	65,536
129.236.0.0/16	AS14	Lamont-Doherty Earth Observatory of Columbia University	65,536
129.19.0.0/16	AS14041	Colorado State University	65,536
129.25.0.0/16	AS11834	Drexel University	65,536
129.252.0.0/16	AS12005	University of South Carolina	65,536
129.170.0.0/16	AS10755	Dartmouth College	65,536
129.97.0.0/16	AS12093	University of Waterloo	65,536
129.165.0.0/16	AS1701	National Aeronautics and Space Administration	65,536
129.109.0.0/16	AS14373	University of Texas Medical Branch	65,536
129.3.0.0/16	AS14433	State University of New York - Oswego	65,536
129.68.0.0/16	AS14529	Saint Joseph's University	65,536
129.82.0.0/16	AS12145	Colorado State University	65,536
129.27.0.0/16	AS1113	Zentraler Informatikdienst	65,536
129.223.0.0/16	AS16509	Amazon.com, Inc.	65,536
129.187.0.0/16	AS12816	Leibniz-Rechenzentrum (LRZ)	65,536
129.17.0.0/16	AS16509	Amazon.com, Inc.	65,536
129.118.0.0/16	AS10421	Texas Tech University	65,536
129.30.0.0/16	AS16509	Amazon.com, Inc.	65,536
129.105.0.0/16	AS103	Northwestern University	65,536
129.9.0.0/16	AS14852	Chrysler Group LLC	65,536
129.113.0.0/16	AS11481	University of Texas Rio Grande Valley	65,536
129.239.0.0/16	AS16509	Amazon.com, Inc.	65,536
129.10.0.0/16	AS156	Northeastern University	65,536
129.176.0.0/16	AS15830	Mayo Foundation for Medical Education and Research	65,536
129.112.0.0/16	AS13998	University of Texas Southwestern Medical Center	65,536
129.196.0.0/16	AS16435	Fluke Corporation	65,536
129.160.0.0/16	AS16509	Amazon Technologies Inc.	65,536
129.36.0.0/16	AS2686	AT&T Enterprises, LLC	65,536

Hosted domains

There are 197 domain names hosted across 50 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
129.16.225.208	chalmers.se	46
129.16.159.21	solarteam.se	33
129.16.222.183	urbanfreightplatform.se	24
129.16.221.73	emobilitycenter.se	18
129.16.227.69	mistraurbanfutures.eu	12
129.16.20.142	dnollk.se	9
129.16.222.93	nordichi2016.org	9
129.16.14.83	farmchalmers.se	6
129.16.222.21	saicom.se	5
129.16.39.53	nollk.it	5
129.16.159.15	ljudobildgruppen.se	5
129.16.159.16	chalmersstudentkar.se	4
129.16.69.51	saferresearch.com	4
129.16.69.2	mebesafe.org	4
129.16.69.12	theags.org	2
129.16.20.109	grammaticalframework.org	2
129.16.221.25	dantes.info	1
129.16.159.2	gasquen.se	1
129.16.11.11	niklasjakobsson.se	1
129.16.69.96	blurt.lol	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

3,147 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
129.16.97.129	AS2841 Chalmers University of Technology	`0.83ms` from Goeteborg, SE
129.16.29.96	AS2841 Chalmers University of Technology	`0.67ms` from Goeteborg, SE
129.16.42.239	AS2841 Chalmers University of Technology	`0.76ms` from Goeteborg, SE
129.16.176.175	AS2841 Chalmers University of Technology	`0.68ms` from Goeteborg, SE
129.16.178.57	AS2841 Chalmers University of Technology	`0.69ms` from Goeteborg, SE
129.16.134.1	AS2841 Chalmers University of Technology	`0.85ms` from Goeteborg, SE
129.16.163.193	AS2841 Chalmers University of Technology	`0.95ms` from Goeteborg, SE
129.16.109.55	AS2841 Chalmers University of Technology	`0.66ms` from Goeteborg, SE
129.16.35.61	AS2841 Chalmers University of Technology	`0.72ms` from Goeteborg, SE
129.16.171.65	AS2841 Chalmers University of Technology	`0.83ms` from Goeteborg, SE
129.16.39.26	AS2841 Chalmers University of Technology	`0.73ms` from Goeteborg, SE
129.16.119.1	AS2841 Chalmers University of Technology	`0.93ms` from Goeteborg, SE
129.16.244.129	AS2841 Chalmers University of Technology	`0.88ms` from Goeteborg, SE
129.16.37.136	AS2841 Chalmers University of Technology	`0.72ms` from Goeteborg, SE
129.16.149.17	AS2841 Chalmers University of Technology	`0.78ms` from Goeteborg, SE
129.16.211.1	AS2841 Chalmers University of Technology	`0.99ms` from Goeteborg, SE
129.16.249.1	AS2841 Chalmers University of Technology	`1.66ms` from Goeteborg, SE
129.16.41.114	AS2841 Chalmers University of Technology	`0.79ms` from Goeteborg, SE
129.16.170.65	AS2841 Chalmers University of Technology	`0.73ms` from Goeteborg, SE
129.16.70.4	AS2841 Chalmers University of Technology	`0.71ms` from Goeteborg, SE
129.16.236.3	AS2841 Chalmers University of Technology	`0.72ms` from Goeteborg, SE
129.16.28.2	AS2841 Chalmers University of Technology	`0.87ms` from Goeteborg, SE
129.16.240.65	AS2841 Chalmers University of Technology	`0.84ms` from Goeteborg, SE
129.16.151.225	AS2841 Chalmers University of Technology	`0.84ms` from Goeteborg, SE
129.16.73.224	AS2841 Chalmers University of Technology	`0.69ms` from Goeteborg, SE

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
107.172.254.128	AS36352 HostPapa	`0.07ms` from Buffalo, US
3.127.18.128	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
104.17.58.32	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
94.133.175.64	AS2860 NOS COMUNICACOES, S.A.	`12.57ms` from Lisbon, PT
60.57.120.224	AS17511 OPTAGE Inc.	`2.65ms` from Osaka, JP
44.210.153.224	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
52.186.17.176	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
104.155.81.176	AS396982 Google LLC	`0.13ms` from Brussels, BE
131.72.178.0	AS61735 RIX INTERNET LTDA	`0.45ms` from Campina Grande, BR
105.156.227.48	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`6.54ms` from Casablanca, MA
34.240.138.144	AS16509 Amazon.com, Inc.	`0.15ms` from Dublin, IE
63.34.25.224	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
87.180.254.160	AS3320 Deutsche Telekom AG	`3.84ms` from Frankfurt am Main, DE
171.224.255.176	AS7552 Viettel Group	`1.85ms` from Hanoi, VN
64.136.213.208	AS18712 Everfast Fiber Networks LLC	`6.18ms` from Kansas City, US
181.135.101.144	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.07ms` from Medellin, CO
79.12.206.224	AS3269 Telecom Italia S.p.A.	`7.03ms` from Milan, IT
90.70.48.208	AS3215 Orange S.A.	`6.75ms` from Paris, FR
157.143.214.112	AS8399 SEWAN SAS	`0.54ms` from Paris, FR
18.211.83.224	AS14618 Amazon.com, Inc.	`0.14ms` from Reston, US
118.241.14.208	AS2527 Sony Network Communications Inc.	`2.10ms` from Tokyo, JP
109.95.183.144	AS196891 BDINET TYLSKI spolka jawna	`6.51ms` from Warsaw, PL
45.36.255.160	AS11426 Charter Communications Inc	`12.17ms` from Atlanta, US
54.149.136.112	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
197.160.8.96	AS24863 Link Egypt (Link.NET)	`17.32ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 -f3 -m16 129.16.0.199

traceroute to 129.16.0.199 (129.16.0.199): 16 hops max, 52 byte packets

3 [AS9002] 87.245.237.145 0.545 ms

4 [AS9002] 87.245.232.102 33.524 ms

5 [] 194.68.123.19 33.478 ms

6 [AS1653] 86.104.202.135 34.865 ms

7 [AS1653] 86.104.202.124 36.036 ms

8 [AS1653] 86.104.202.78 37.073 ms

9 [AS1653] 86.104.202.75 39.456 ms

10 [AS1653] 86.104.202.36 40.436 ms

11 [AS1653] 86.104.202.41 40.787 ms

12 [AS1653] 130.242.64.149 40.415 ms

13 [AS2841] 129.16.2.69 40.497 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Kharkiv, UA

On December 6th 2025

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales