Autonomous System details

AS2603

NORDUnet  ·  nordu.net

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

Sign up for free ›

AS2603 – NORDUnet

Field Value
Country Denmark
Website nordu.net
Hosted domains 50
IPv4 addresses 9,728
IPv6 addresses 713,053,462,628,379,038,341,895,553,024
ASN type Education
Registry ripe
Allocated 24 years ago on May 07, 2002
Updated 2 months ago on Nov 23, 2025
Netblock Company Num of IPs
109.105.96.0/20 NORDUnet 4,096
109.105.112.0/21 NORDUnet 2,048
109.105.120.0/22 NORDUnet 1,024
185.174.116.0/22 NORDUnet 1,024
192.36.171.0/24 Services network 256
193.10.252.0/24 NORDUnet Backbone 256
193.10.254.0/24 NORDUnet Backbone 256
193.10.255.0/24 SUNET TUG 256
193.11.3.0/24 New combined NORDUnet/SUNET NOC network 256
194.68.13.0/24 NORDUnet Backbone 256
Netblock Company
2001:948::/29 NORDUnet
2001:948::/32 NORDUnet
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details


                                                ASHandle:       AS2603
                                                OrgID:          AS2603
                                                ASName:         AS2603
                                                ASNumber:       AS2603
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

Hosted Domains

There are 50 domain names hosted across 15 IP addresses on this ASN.

IP Address Domain Domains on this IP
109.105.110.44 █████████ 19
109.105.117.8 ██████████ 13
109.105.110.120 ██████████ 11
109.105.110.65 █████████ 10
109.105.116.199 ██████████ 2
192.36.171.213 █████████ 2
109.105.110.39 ██████████ 2
109.105.100.181 ██████████ 1
192.36.171.231 ██████████ 1
192.36.171.17 ██████████ 1

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 180 peers for this ASN.

Peers Name
AS1103 SURF B.V.
AS1140 Stichting Internet Domeinregistratie Nederland
AS11537 Internet2
AS12389 PJSC Rostelecom
AS12552 GlobalConnect AB
AS1257 Tele2 Sverige AB
AS1267 WIND TRE S.P.A.
AS1273 Vodafone Group PLC
AS12779 IT.Gate S.p.A.
AS12859 BIT BV
AS12969 Vodafone Iceland
AS1299 Arelion Sweden AB
AS12996 Domeneshop AS
AS13030 Init7 (Switzerland) Ltd.
AS13194 Bite IP Network
AS132337 Axclusive
AS13237 euNetworks GmbH
AS13335 Cloudflare, Inc.
AS140627 OneQode
AS14537 Continent 8 LLC
AS14907 Wikimedia Foundation Inc.
AS15412 FLAG TELECOM UK LIMITED
AS15474 Rannsokna- og haskolanet Islands hf.
AS16086 DNA Oyj
AS1653 Vetenskapsradet / SUNET
AS16735 ALGAR TELECOM S/A
AS1741 CSC - Tieteen tietotekniikan keskus Oy
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS18106 Viewqwest Pte Ltd
AS1828 Unitas Global
AS1835 Forskningsnettet - Danish network for Research and Education
AS1836 green.ch AG
AS1850 Internet a Islandi hf
AS19151 BroadbandONE, LLC
AS19754 The Fusion Network, LLC
AS198093 Foreningen for digitala fri- och rattigheter
AS199524 G-Core Labs S.A.
AS2027 MilkyWan Association
AS20473 The Constant Company, LLC
AS20514 Axians AB
AS205206 Netsite A/S
AS20562 Broadband Hosting B.V.
AS20764 CJSC RASCOM
AS20932 Services Industriels de Geneve
AS20965 GEANT Vereniging
AS21320 GEANT Vereniging
AS21700 Neptune Networks, LLC
AS224 SIKT - KUNNSKAPSSEKTORENS TJENESTELEVERANDOR
AS24482 SG.GS
AS24743 Snerpa ehf
AS24961 WIIT AG
AS2497 Internet Initiative Japan Inc.
AS25091 IP-Max SA
AS25160 Vorboss Limited
AS25220 equada network GmbH
AS25369 Hydra Communications Ltd
AS25509 Hringidan ehf / Vortex Inc
AS2832 Vetenskapsradet / SUNET
AS2847 Kauno Technologijos Universitetas
AS28716 Retelit Digital Services S.p.A.
AS28917 Fiord Networks, UAB
AS2907 Research Organization of Information and Systems, National Institute of Informatics
AS29075 IELO Main Network
AS2914 NTT America, Inc.
AS29140 Hostserver GmbH
AS293 ESnet
AS29689 Origo ehf
AS29695 Lyse Tele AS
AS30781 Free Pro SAS
AS30818 Advania Island ehf
AS30844 Liquid Telecommunications Ltd
AS30880 SpaceDump IT AB
AS31027 GlobalConnect A/S
AS31122 Digiweb ltd
AS31133 PJSC MegaFon
AS3170 VeloxServ Communications Ltd
AS3214 xTom GmbH
AS3221 EENet
AS32590 Valve Corporation
AS3301 Telia Company AB
AS3303 Swisscom (Switzerland) Ltd
AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS33891 Core-Backbone GmbH
AS3399 Obenet AB
AS34019 Hivane Association
AS34177 CELESTE SAS
AS34288 Kantonsschule Zug
AS34549 meerfarbig GmbH & Co. KG
AS3491 PCCW Global, Inc.
AS35280 F5 Networks SARL
AS35710 weber.digital GmbH
AS36236 NetActuate, Inc
AS37100 SEACOM Limited
AS37271 Workonline Communications(Pty) Ltd
AS3741 Dimension Data
AS37468 Angola Cables
AS37662 West Indian Ocean Cable Company
AS38008 Aperture Science Limited
AS38195 Superloop
AS39120 Convergenze S.p.A.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 7 upstreams for this ASN.

upstreams Name
AS1299 Arelion Sweden AB
AS2914 NTT America, Inc.
AS3491 PCCW Global, Inc.
AS6461 Zayo Bandwidth
AS6762 TELECOM ITALIA SPARKLE S.p.A.
AS6830 Liberty Global Europe Holding B.V.
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 15 downstreams for this ASN.

Downstreams Name
AS15474 Rannsokna- og haskolanet Islands hf.
AS1653 Vetenskapsradet / SUNET
AS1741 CSC - Tieteen tietotekniikan keskus Oy
AS1835 Forskningsnettet - Danish network for Research and Education
AS198093 Foreningen for digitala fri- och rattigheter
AS21320 GEANT Vereniging
AS224 SIKT - KUNNSKAPSSEKTORENS TJENESTELEVERANDOR
AS2832 Vetenskapsradet / SUNET
AS2847 Kauno Technologijos Universitetas
AS3221 EENet
AS39590 NORDUnet
AS6461 Zayo Bandwidth
AS6509 CANARIE Inc
AS8501 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
AS8674 Netnod AB
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

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

IP Address ASN Details
2001:948:feed:: AS2603 NORDUnet 4.61ms from Copenhagen, DK
2001:948:a::15 AS2603 NORDUnet 0.49ms from Stockholm, SE
109.105.98.147 AS2603 NORDUnet 0.43ms from Stockholm, SE
109.105.109.164 AS2603 NORDUnet 0.49ms from Stockholm, SE
2001:948:0:bad:c0de::10 AS2603 NORDUnet 0.47ms from Frankfurt am Main, DE
193.10.254.131 AS2603 NORDUnet 3.20ms from Skanderborg, DK
109.105.117.32 AS2603 NORDUnet 2.93ms from Skanderborg, DK
109.105.107.37 AS2603 NORDUnet 0.48ms from Stockholm, SE
109.105.96.171 AS2603 NORDUnet 0.47ms from Stockholm, SE
2001:948:4:6::80 AS2603 NORDUnet 0.48ms from Stockholm, SE
109.105.101.20 AS2603 NORDUnet 0.46ms from Amsterdam, NL
109.105.108.130 AS2603 NORDUnet 0.54ms from Stockholm, SE
2001:948:96::141 AS2603 NORDUnet 4.47ms from Copenhagen, DK
2001:948:380::4 AS2603 NORDUnet 4.54ms from Copenhagen, DK
109.105.118.212 AS2603 NORDUnet 3.00ms from Skanderborg, DK
109.105.97.73 AS2603 NORDUnet 0.48ms from Frankfurt am Main, DE
109.105.110.100 AS2603 NORDUnet 2.92ms from Skanderborg, DK
109.105.102.98 AS2603 NORDUnet 0.46ms from London, GB
109.105.120.65 AS2603 NORDUnet 0.66ms from London, GB
185.174.117.20 AS2603 NORDUnet 3.09ms from Skanderborg, DK
2001:948:7:2::163 AS2603 NORDUnet 0.53ms from Stockholm, SE
109.105.104.131 AS2603 NORDUnet 0.53ms from Stockholm, SE
192.36.171.224 AS2603 NORDUnet 0.47ms from Stockholm, SE
109.105.121.53 AS2603 NORDUnet 0.77ms from Stockholm, SE
2001:948:2:21::2 AS2603 NORDUnet 0.43ms from Ashburn, US

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
68.33.192.75 AS7922 Comcast Cable Communications, LLC 6.21ms from Ashburn, US
20.236.124.43 AS8075 Microsoft Corporation 0.32ms from Chicago, US
221.206.29.27 AS4837 CHINA UNICOM China169 Backbone 6.06ms from Harbin, CN
103.247.46.187 AS58688 RADIANT COMMUNICATIONS LTD IIG 7.47ms from Kolkata, IN
194.164.18.187 AS8560 IONOS SE 0.61ms from London, GB
45.137.75.251 AS205981 FIBRAWORLD TELECOM S.A.U. 6.62ms from Madrid, ES
60.145.222.91 AS17676 SoftBank Corp. 4.20ms from Osaka, JP
45.200.237.11 AS54600 PEG TECH INC 0.65ms from San Jose, US
72.50.63.123 AS10396 DATACOM CARIBE, INC. 1.69ms from San Juan, PR
1.15.9.43 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.41ms from Shanghai, CN
49.176.57.91 AS4804 Microplex PTY LTD 7.53ms from Sydney, AU
219.98.194.107 AS2527 Sony Network Communications Inc. 1.50ms from Tokyo, JP
20.83.151.139 AS8075 Microsoft Corporation 1.24ms from Ashburn, US
181.27.66.139 AS22927 Telefonica de Argentina 2.26ms from Buenos Aires, AR
196.200.160.107 AS30983 CNRST (Centre National pour la Recherche Scientifique et Technique) 4.69ms from Casablanca, MA
24.59.167.43 AS11351 Charter Communications Inc 18.59ms from Chicago, US
136.119.126.187 AS396982 Google LLC 0.11ms from Council Bluffs, US
186.222.5.155 AS28573 Claro NXT Telecomunicacoes Ltda 14.00ms from Curitiba, BR
14.180.176.43 AS45899 VNPT Corp 5.16ms from Da Nang, VN
223.189.223.43 AS45609 Bharti Airtel Ltd. AS for GPRS Service 10.94ms from Delhi, IN
14.169.23.107 AS45899 VNPT Corp 1.59ms from Ho Chi Minh City, VN
2.133.7.91 AS9198 JSC Kazakhtelecom 4.70ms from Karagandy, KZ
109.202.30.107 AS25549 JSC Avantel 0.88ms from Novosibirsk, RU
193.119.43.123 AS7545 TPG Telecom Limited 1.27ms from Perth, AU
54.197.243.139 AS14618 Amazon.com, Inc. 0.21ms from Reston, US

Traceroute

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

$
traceroute -a -n -q1 -f5 109.105.97.9
traceroute to 109.105.97.9 (109.105.97.9): 64 hops max, 52 byte packets
5 [] 192.121.80.74 0.382 ms
6 [AS2603] 109.105.97.9 0.667 ms
Measurement taken from IPinfo ProbeNet in Stockholm, SE
On

Related Networks

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 AS2603 at robtex.

Data 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.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs