138.100.0.0/16

AS766 · RedIRIS Autonomous System

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Summary

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

WHOIS Details

inetnum:        138.100.0.0 - 138.100.255.255
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
notify:         [email protected]
created:        1970-01-01T00:00:00Z
last-modified:  2025-04-09T09:36:06Z
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:          138.100.0.0/16
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
138.190.0.0/16	AS3303	Berne, Switzerland	65,536
138.223.0.0/16	AS3303		65,536
138.210.0.0/16	AS2379	CenturyLink Communications, LLC	65,536
138.48.0.0/16	AS2611	Facultes Universitaires Notre Dame de la Paix	65,536
138.210.0.0/16	AS22186	CenturyLink Communications, LLC	65,536
138.115.0.0/16	AS270	National Aeronautics and Space Administration	65,536
138.231.0.0/16	AS2269	Ecole Normale Superieure Paris-Saclay EPSCP	65,536
138.236.0.0/16	AS17234	Gustavus Adolphus College	65,536
138.77.0.0/16	AS24433	Central Queensland University	65,536
138.107.0.0/16	AS2497	OLYMPUS CORPORATION	65,536
138.37.0.0/16	AS198864	Queen Mary University of London	65,536
138.66.0.0/16	AS20981	Prov. Casamassima Km.3	65,536
138.29.0.0/16	AS22742	Coast Guard Academy	65,536
138.201.0.0/16	AS24940	Server Block	65,536
138.90.0.0/16	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
138.216.0.0/16	AS214692	Tuve-palvelut	65,536
138.237.0.0/16	AS18791	Texas Christian University	65,536
138.210.0.0/16	AS22561	CenturyLink Communications, LLC	65,536
138.102.0.0/16	AS2200	INRAE	65,536
138.111.0.0/16	AS16509	Amazon Technologies Inc.	65,536
138.47.0.0/16	AS19564	Louisiana Tech University	65,536
138.132.0.0/16	AS20746	Italtel SPA	65,536
138.106.0.0/16	AS202116	SCANIA CV AB	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	AS2200	CENTRALESUPELEC	65,536
138.225.0.0/16	AS20868	ABB Information Systems Ltd	65,536
138.210.0.0/16	AS11398	CenturyLink Communications, LLC	65,536
138.52.0.0/16	AS16509	Amazon.com, 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
138.103.0.0/16	AS15830	AB Sandvik	65,536
138.27.0.0/16	AS1540	Headquarters, USAISC	65,536
138.86.0.0/16	AS15295	University of Northern Colorado	65,536
138.50.0.0/16	AS1565	Headquarters, USAISC	65,536
138.9.0.0/16	AS18663	University of the Pacific	65,536
138.41.0.0/16	AS137	DIR-GARR - Roma	65,536
138.22.0.0/16	AS1853	GeoSphere Austria	65,536
138.232.0.0/16	AS1110	University of Innsbruck	65,536
138.101.0.0/16	AS16509	Nikkei Inc.	65,536
138.34.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.50.0.0/16	AS367	Headquarters, USAISC	65,536

Hosted domains

There are 87 domain names hosted across 46 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
138.100.6.231	upmpress.es	16
138.100.15.131	nexuslinguarum.eu	12
138.100.70.20	estefaniayruben.com	5
138.100.44.140	arquitecturadeinteriores.net	3
138.100.137.229	lojaminichina.com	3
138.100.11.231	semdata-project.eu	2
138.100.153.9	vota-paco.es	2
138.100.82.235	digest.zone	2
138.100.67.153	gpalacios.es	2
138.100.11.114	actionproject.eu	2
138.100.11.141	lynx-project.eu	2
138.100.44.133	piuralavieja.com	2
138.100.31.24	ieeesb.es	1
138.100.49.67	blockchainrobotics.net	1
138.100.15.151	linkeddata.es	1
138.100.200.6	upm.es	1
138.100.17.23	erc-miracle.eu	1
138.100.67.140	matewiki.org	1
138.100.21.254	robolabo.es	1
138.100.153.100	daetsisi.es	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

16,955 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
138.100.7.113	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.5.46	AS766 RedIRIS Autonomous System	`0.71ms` from Madrid, ES
138.100.2.190	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.6.237	AS766 RedIRIS Autonomous System	`0.68ms` from Madrid, ES
138.100.0.116	AS766 RedIRIS Autonomous System	`0.67ms` from Madrid, ES
138.100.3.89	AS766 RedIRIS Autonomous System	`0.67ms` from Madrid, ES
138.100.4.171	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.8.149	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.1.252	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.9.23	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.88.160	AS766 RedIRIS Autonomous System	`0.72ms` from Madrid, ES
138.100.247.18	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.220.2	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.254.244	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.223.141	AS766 RedIRIS Autonomous System	`0.67ms` from Madrid, ES
138.100.13.13	AS766 RedIRIS Autonomous System	`0.71ms` from Madrid, ES
138.100.72.38	AS766 RedIRIS Autonomous System	`0.68ms` from Madrid, ES
138.100.165.48	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.188.208	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.20.140	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.32.74	AS766 RedIRIS Autonomous System	`0.70ms` from Madrid, ES
138.100.125.9	AS766 RedIRIS Autonomous System	`0.71ms` from Madrid, ES
138.100.27.67	AS766 RedIRIS Autonomous System	`0.68ms` from Madrid, ES
138.100.200.15	AS766 RedIRIS Autonomous System	`0.69ms` from Madrid, ES
138.100.204.239	AS766 RedIRIS Autonomous System	`0.68ms` 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
199.248.197.80	AS6223 CenturyLink Communications, LLC	`2.71ms` from Ashburn, US
45.28.155.16	AS7018 AT&T Enterprises, LLC	`8.57ms` from Atlanta, US
86.127.139.192	AS8708 DIGI ROMANIA S.A.	`0.79ms` from Bucharest, RO
119.48.97.160	AS4837 CHINA UNICOM China169 Backbone	`1.25ms` from Changchun, CN
80.137.53.144	AS3320 Deutsche Telekom AG	`8.04ms` from Frankfurt am Main, DE
72.220.163.224	AS22773 Cox Communications Inc.	`7.76ms` from Los Angeles, US
89.82.12.176	AS5410 Bouygues Telecom SA	`8.34ms` from Marseille, FR
95.220.179.160	AS12714 PJSC MegaFon	`18.91ms` from Moscow, RU
173.169.99.128	AS33363 Charter Communications, Inc	`5.20ms` from Orlando, US
220.219.76.64	AS9997 Suzuka Cable Co.,Ltd	`5.51ms` from Osaka, JP
34.198.148.64	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
31.209.34.0	AS29518 Bredband2 AB	`6.93ms` from Stockholm, SE
180.35.221.208	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.85ms` from Tokyo, JP
216.171.55.32	AS23473 PAVLOV MEDIA INC	`8.36ms` from Atlanta, US
88.65.252.64	AS3209 Vodafone GmbH	`8.20ms` from Frankfurt am Main, DE
139.177.181.192	AS63949 Akamai Connected Cloud	`0.13ms` from Frankfurt am Main, DE
217.160.108.144	AS8560 IONOS SE	`2.61ms` from Frankfurt am Main, DE
87.92.243.112	AS16086 DNA Oyj	`0.78ms` from Helsinki, FI
223.18.158.160	AS9304 HGC Global Communications Limited	`1.56ms` from Hong Kong, HK
1.253.6.64	AS9318 SK Broadband Co Ltd	`7.74ms` from Incheon, KR
79.21.90.64	AS3269 Telecom Italia S.p.A.	`2.65ms` from Milan, IT
112.26.184.192	AS9808 China Mobile Communications Group Co., Ltd.	`8.29ms` from Nanjing, CN
98.5.252.64	AS11351 Charter Communications Inc	`18.88ms` from New York City, US
212.251.234.192	AS2119 Telenor Norge AS	`10.78ms` from Oslo, NO
57.180.123.144	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f5 138.100.26.202

traceroute to 138.100.26.202 (138.100.26.202): 64 hops max, 52 byte packets

5 [AS21320] 83.97.90.20 43.352 ms

6 *

7 *

8 [AS766] 130.206.212.106 44.723 ms

9 *

10 [AS766] 138.100.26.202 43.419 ms

Measurement taken from

IPinfo ProbeNet in Madrid, ES

On January 30th 2026

What are IP address ranges?

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