1. All IP Ranges
  2. 138.0.0.0/8
  3. 138.4.0.0/16
  4. AS766  | 138.4.0.0/16

138.4.0.0/16

AS766  ·  RedIRIS Autonomous System

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Summary

Country Spain
Domain upm.es
ASN AS766
Registry RIPE
ID UPM

WHOIS Details

inetnum:        138.4.0.0 - 138.4.255.255
netname:        UPM
descr:          Universidad Politecnica de Madrid
descr:          Madrid, Spain
country:        ES
admin-c:        JDSD3-RIPE
tech-c:         JDSD3-RIPE
abuse-c:        IRIS5-RIPE
status:         LEGACY
mnt-irt:        IRT-IRISCERT
remarks:        Incident handling for organizations affiliated with RedIRIS
remarks:        Spanish Academic and Research Network.
remarks:        emergency phone number +34 647 300 717
remarks:        timezone GMT+01 (GMT+02 with DST)
remarks:        use [email protected] for security, spam and abuse notifications
mnt-by:         REDIRIS-NMC
created:        1970-01-01T00:00:00Z
last-modified:  2025-04-07T10:54:13Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        IRIS5-RIPE
abuse-org:      ORG-IANA1-RIPE

person:         Jefe del Servicio de Planificacion Informatica y Comunicaciones
address:        Servicio de Planificacion Informatica y Comunicaciones
address:        Universidad Politecnica de Madrid
address:        Avda. Ramiro de Maeztu, 7
address:        Ciudad Universitaria
address:        E-28040 Madrid
address:        SPAIN
phone:          +34 913364600
fax-no:         +34 913366195
e-mail:         [email protected]
nic-hdl:        JDSD3-RIPE
notify:         [email protected]
mnt-by:         REDIRIS-NMC
mnt-by:         UPM-NMC
created:        2017-01-25T11:49:49Z
last-modified:  2017-10-30T23:36:26Z
source:         RIPE

route:          138.4.0.0/16
descr:          UPM
origin:         AS766
mnt-by:         REDIRIS-NMC
created:        1970-01-01T00:00:00Z
last-modified:  2005-12-13T08:04:09Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range ASN Company Num of IPs
138.210.0.0/16 AS29817 CenturyLink Communications, LLC 65,536
138.67.0.0/16 AS36704 Colorado School of Mines 65,536
138.210.0.0/16 AS2379 CenturyLink Communications, LLC 65,536
138.254.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
138.107.0.0/16 AS2497 OLYMPUS CORPORATION 65,536
138.26.0.0/16 AS3452 University of Alabama at Birmingham - University Computer Center 65,536
138.90.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.237.0.0/16 AS18791 Texas Christian University 65,536
138.247.0.0/16 AS23122 Dakota State University 65,536
138.210.0.0/16 AS22186 CenturyLink Communications, LLC 65,536
138.29.0.0/16 AS22742 Coast Guard Academy 65,536
138.77.0.0/16 AS24433 Central Queensland University 65,536
138.216.0.0/16 AS214692 Tuve-palvelut 65,536
138.116.0.0/16 AS33004 SUNY Empire State University 65,536
138.52.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.70.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.15.0.0/16 AS10753 NEC Laboratories America, Inc. 65,536
138.63.0.0/16 AS1715 Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique 65,536
138.195.0.0/16 AS2200 CENTRALESUPELEC 65,536
138.9.0.0/16 AS18663 University of the Pacific 65,536
138.22.0.0/16 AS1853 GeoSphere Austria 65,536
138.102.0.0/16 AS2200 INRAE 65,536
138.34.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.37.0.0/16 AS198864 Queen Mary University of London 65,536
138.231.0.0/16 AS2269 Ecole Normale Superieure Paris-Saclay EPSCP 65,536
138.210.0.0/16 AS209 CenturyLink Communications, LLC 65,536
138.220.0.0/16 AS10497 IBRD 65,536
138.240.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.195.0.0/16 AS212424 CENTRALESUPELEC 65,536
138.66.0.0/16 AS20981 Prov. Casamassima Km.3 65,536
138.210.0.0/16 AS11398 CenturyLink Communications, LLC 65,536
138.101.0.0/16 AS16509 Nikkei Inc. 65,536
138.130.0.0/16 AS1221 Telstra Limited 65,536
138.217.0.0/16 AS1221 Telstra Limited 65,536
138.189.0.0/16 AS12511 Post CH AG 65,536
138.191.0.0/16 AS12511 Post CH AG 65,536
138.246.0.0/16 AS12816 Ludwig-Maximilians-Universitaet Muenchen 65,536
138.210.0.0/16 AS14921 CenturyLink Communications, LLC 65,536
138.92.0.0/16 AS11482 Canisius College 65,536
138.192.0.0/16 AS21727 Hamline University 65,536
138.27.0.0/16 AS1540 Headquarters, USAISC 65,536
138.86.0.0/16 AS15295 University of Northern Colorado 65,536
138.103.0.0/16 AS15830 AB Sandvik 65,536
138.41.0.0/16 AS137 DIR-GARR - Roma 65,536
138.236.0.0/16 AS17234 Gustavus Adolphus College 65,536
138.50.0.0/16 AS1565 Headquarters, USAISC 65,536
138.232.0.0/16 AS1110 University of Innsbruck 65,536
138.111.0.0/16 AS16509 Amazon Technologies Inc. 65,536
138.47.0.0/16 AS19564 Louisiana Tech University 65,536
138.78.0.0/16 AS396087 St. Mary's College of Maryland 65,536

Hosted domains

There are 81 domain names hosted across 44 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
138.4.84.21 uesevi.es 12
138.4.83.136 adaptatividad.net 10
138.4.32.2 efemebe.es 4
138.4.92.182 imupm.com 4
138.4.83.138 municipiosmineros.es 3
138.4.92.33 adlisa.com 3
138.4.4.221 notaburras.com 2
138.4.11.140 autogdpr.org 2
138.4.92.136 drive-project.com 2
138.4.22.156 educainternet.org 2
138.4.92.155 atletismopolcre.es 2
138.4.22.19 vishub.org 2
138.4.92.32 aerowiki.es 2
138.4.92.162 transyt-projects.es 2
138.4.92.131 sdgine.eu 1
138.4.92.236 gigesypupm.com 1
138.4.92.234 gipc.es 1
138.4.92.153 smartdiabetes.eu 1
138.4.92.28 congresotryit.es 1
138.4.92.216 surefarmproject.eu 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

17,101 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
138.4.68.186 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES
138.4.84.30 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.36.236 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES
138.4.57.140 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.53.111 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.30.189 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.20.176 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES
138.4.81.47 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.79.229 AS766 RedIRIS Autonomous System 0.67ms from Madrid, ES
138.4.66.107 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.75.159 AS766 RedIRIS Autonomous System 0.71ms from Madrid, ES
138.4.4.87 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.94.30 AS766 RedIRIS Autonomous System 0.72ms from Madrid, ES
138.4.64.172 AS766 RedIRIS Autonomous System 0.67ms from Madrid, ES
138.4.80.186 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.29.32 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.47.185 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.102.215 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.104.169 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.58.126 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.69.116 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.23.203 AS766 RedIRIS Autonomous System 0.68ms from Madrid, ES
138.4.59.23 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES
138.4.76.177 AS766 RedIRIS Autonomous System 0.70ms from Madrid, ES
138.4.37.167 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES

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
195.240.86.192 AS1136 KPN B.V. 0.96ms from Amsterdam, NL
99.10.227.112 AS7018 AT&T Enterprises, LLC 2.11ms from Atlanta, US
156.194.188.160 AS8452 TE-AS 10.10ms from Cairo, EG
73.74.45.16 AS7922 Comcast Cable Communications, LLC 4.96ms from Chicago, US
54.75.12.32 AS16509 Amazon.com, Inc. 0.28ms from Dublin, IE
217.87.197.32 AS3320 Deutsche Telekom AG 4.03ms from Hamburg, DE
45.150.50.48 AS61317 Hivelocity LLC 0.43ms from London, GB
80.102.101.160 AS12479 Orange Espagne SA 12.63ms from Madrid, ES
79.10.244.80 AS3269 Telecom Italia S.p.A. 7.23ms from Milan, IT
173.235.150.240 AS11272 C Spire Fiber 4.82ms from New Orleans, US
45.113.108.32 AS12975 PALTEL Autonomous System 1.06ms from Ramallah, PS
52.90.251.240 AS14618 Amazon.com, Inc. 0.37ms from Reston, US
123.5.166.224 AS4837 CHINA UNICOM China169 Backbone 3.64ms from Zhengzhou, CN
212.54.192.80 AS1241 Forthnet 0.58ms from Athens, GR
31.171.225.16 AS41627 Pick-Up Ltd. 4.01ms from Budapest, HU
88.10.68.192 AS3352 TELEFONICA DE ESPANA S.A.U. 8.62ms from Madrid, ES
79.157.112.80 AS3352 TELEFONICA DE ESPANA S.A.U. 8.45ms from Madrid, ES
47.4.221.96 AS20115 Charter Communications LLC 12.43ms from Minneapolis, US
189.47.93.144 AS27699 TELEFÔNICA BRASIL S.A 2.88ms from Osasco, BR
86.205.166.16 AS3215 Orange S.A. 9.07ms from Paris, FR
88.61.254.240 AS3269 Telecom Italia S.p.A. 3.90ms from Rome, IT
178.69.201.80 AS12389 PJSC Rostelecom 11.98ms from Saint Petersburg, RU
112.214.97.240 AS10036 DLIVE 6.13ms from Seoul, KR
112.176.60.80 AS4766 Korea Telecom 3.07ms from Seoul, KR
4.198.11.160 AS8075 Microsoft Corporation 0.69ms from Sydney, AU

Traceroute

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

$
traceroute -a -n -q1 -f5 138.4.2.71
traceroute to 138.4.2.71 (138.4.2.71): 64 hops max, 52 byte packets
5 [AS21320] 83.97.90.20 46.913 ms
6 *
7 *
8 [AS766] 130.206.212.106 44.379 ms
9 *
10 [AS766] 138.4.2.71 43.541 ms
Measurement taken from IPinfo ProbeNet in Madrid, ES
On

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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.

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