145.6.0.0/16

AS137539 · China Unicom

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Summary

Country	Netherlands
Domain	surfnet.nl
ASN	AS137539
Registry	RIPE
ID	SURFNET-EARLY-REGISTRATIONS

WHOIS Details

inetnum:        145.6.0.0 - 145.6.255.255
netname:        SURFNET-EARLY-REGISTRATIONS
descr:          SURFnet bv
org:            ORG-Sb3-RIPE
descr:          P.O. Box 19035
descr:          Utrecht
descr:          3501 DA
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
remarks:        ---------------------------------------------------
remarks:        Use only cert@surfnet.nl to report security incidents.
remarks:        See also http://cert.surfnet.nl/ for more information.
remarks:        ---------------------------------------------------
mnt-by:         SN-LIR-MNT
mnt-lower:      SN-LIR-MNT
mnt-routes:     AS1103-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2017-06-19T09:16:39Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

organisation:   ORG-Sb3-RIPE
org-name:       SURF B.V.
country:        NL
org-type:       LIR
address:        P.O. Box 19035
address:        3501 DA
address:        Utrecht
address:        NETHERLANDS
phone:          +31887873000
e-mail:         lir@surf.nl
admin-c:        HT3384-RIPE
admin-c:        MK512-RIPE
admin-c:        SNS1-RIPE
admin-c:        WB311-RIPE
admin-c:        NO17-RIPE
admin-c:        RS957-RIPE
admin-c:        JO5863-RIPE
admin-c:        MM57501-RIPE
abuse-c:        SNS1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SN-LIR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SN-LIR-MNT
created:        2004-04-17T11:43:29Z
last-modified:  2023-02-21T13:35:38Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      undefined

role:           SURF Network Maintainer
address:        Kantoren Hoog Overborch (Hoog Catharijne)
address:        Moreelsepark 48, 3511 EP Utrecht
address:        Postbus 19035, 3501 DA Utrecht
phone:          +31 88 7873000
admin-c:        WB311-RIPE
tech-c:         NO17-RIPE
tech-c:         WB311-RIPE
tech-c:         MK512-RIPE
tech-c:         JO5863-RIPE
tech-c:         MM57501-RIPE
tech-c:         BW4086-RIPE
tech-c:         EV4604-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE
e-mail:         noc@surf.nl

Nearby Ranges

BGP prefixes that overlap with 145.0.0.0/8

Range	ASN	Company	Num of IPs
145.132.0.0/15	AS8075	Microsoft Limited	131,072
145.50.0.0/16	AS42894	Ministerie van Verkeer en Waterstaat/Rijkswaterstaat	65,536
145.233.0.0/16	AS3549	Lumen Technologies UK Limited	65,536
145.218.0.0/16	AS49362	DSV A/S	65,536
145.251.0.0/16	AS5411	Systembolaget AB	65,536
145.236.0.0/16	AS5483	Budapest	65,536
145.4.0.0/16	AS702	PGGM N.V.	65,536
145.31.0.0/16	AS42894	Ministerie van Verkeer en Waterstaat/Rijkswaterstaat	65,536
145.10.0.0/16	AS48037	SSC-ICT Haaglanden	65,536
145.228.0.0/16	AS33873	Arvato Systems GmbH	65,536
145.244.0.0/16	AS210543	Steiermaerkische Krankenanstalten GesmbH	65,536
145.82.0.0/16	AS25019	Saudi Telecom Company JSC	65,536
145.55.0.0/16	AS16509	A100 ROW Inc	65,536
145.245.0.0/16	AS2047	Hoffmann - La Roche Ltd.	65,536
145.238.0.0/16	AS2200	Observatoire de Paris	65,536
145.221.0.0/16	AS15625	ING Bank NV	65,536
145.243.0.0/16	AS16509	Axel Springer SE	65,536
145.239.0.0/16	AS16276	OVH SAS	65,536
145.119.0.0/16	AS1136	ISC-NL	65,536
145.236.0.0/16	AS1902	Budapest	65,536
145.222.0.0/16	AS21286	KPN B.V.	65,536
145.232.0.0/16	AS15675	Etat de Vaud, CCT	65,536
145.85.0.0/16	AS1103	Fontys Hogeschool	65,536
145.95.0.0/16	AS1103	SURF B.V.	65,536
145.230.0.0/16	AS12663	Vodafone Group Services GmbH	65,536
145.52.0.0/16	AS1103	Haagse Hogeschool	65,536
145.86.0.0/16	AS15830	Medisch Spectrum Twente	65,536
145.91.0.0/16	AS1103	Zuyd Hogeschool	65,536
145.220.0.0/16	AS1101	SURF B.V.	65,536
145.251.0.0/16	AS12552	Systembolaget AB	65,536
145.4.0.0/16	AS1136	PGGM N.V.	65,536
145.13.0.0/16	AS21286	F&IT RIM - OsirisNG, Zoetermeer	65,536
145.20.0.0/16	AS1103	Open Universiteit Nederland	65,536
145.37.0.0/16	AS1103	Hanzehogeschool Groningen	65,536
145.53.0.0/16	AS1136	KPN B.V.	65,536
145.108.0.0/16	AS1103	Vrije Universiteit Amsterdam	65,536
145.51.0.0/16	AS1103	Hogeschool Rotterdam	65,536
145.41.0.0/16	AS1103	SURF B.V.	65,536
145.0.0.0/16	AS1103	SURFnet bv	65,536
145.23.0.0/16	AS1103	Koninklijk Nederlands Meteorologisch Instituut	65,536
145.81.0.0/16	AS1103	Hogeschool Inholland	65,536
145.19.0.0/16	AS1103	HZ University of Applied Sciences	65,536
145.68.0.0/16	AS1136	ISC-NL	65,536
145.9.0.0/16	AS1103	Deltares	65,536
145.24.0.0/16	AS1103	Hogeschool Rotterdam	65,536
145.94.0.0/16	AS1128	Delft University of Technology Network	65,536
145.111.0.0/16	AS1199	SURFnet bv	65,536
145.33.0.0/16	AS1103	Hanzehogeschool Groningen	65,536
145.126.0.0/16	AS1103	SURFnet bv	65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
107.142.200.128	AS7018 AT&T Enterprises, LLC	`2.64ms` from Atlanta, US
75.155.118.64	AS852 TELUS Communications Inc.	`1.01ms` from Calgary, CA
190.235.185.192	AS6147 INTEGRATEL PERÚ S.A.A.	`8.92ms` from Lima, PE
213.184.249.176	AS42772 Unitary enterprise A1	`1.01ms` from Minsk, BY
79.8.20.80	AS3269 Telecom Italia S.p.A.	`7.84ms` from Rome, IT
86.238.200.208	AS3215 Orange S.A.	`1.42ms` from Saint-Denis, FR
63.197.17.0	AS7018 AT&T Enterprises, LLC	`1.60ms` from San Jose, US
187.205.98.192	AS8151 UNINET	`8.05ms` from Santiago de Queretaro, MX
210.185.156.96	AS10004 Phoenix Communications Inc.	`14.71ms` from Tokyo, JP
182.134.212.144	AS4134 CHINANET BACKBONE	`7.01ms` from Chengdu, CN
45.144.186.32	AS15817 Mittwald CM Service GmbH und Co. KG	`3.15ms` from Hamburg, DE
134.161.239.128	AS22594 University of Northern Iowa	`10.36ms` from Kansas City, US
221.145.47.64	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
52.174.160.96	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
32.211.158.96	AS46690 Southern New England Telephone Company and SNET America, Inc.	`12.43ms` from Ashburn, US
60.0.221.16	AS4837 CHINA UNICOM China169 Backbone	`14.13ms` from Beijing, CN
97.130.77.208	AS6167 Verizon Business	`10.50ms` from Chicago, US
151.63.121.192	AS1267 WIND TRE S.P.A.	`12.80ms` from Frosinone, IT
139.94.219.80	AS397412 TACHUS INFRASTRUCTURE LLC	`1.93ms` from Houston, US
121.120.203.128	AS9534 Binariang Berhad	`12.18ms` from Kuala Lumpur, MY
15.216.99.192	AS16509 Amazon.com, Inc.	`6.55ms` from Madrid, ES
202.138.187.80	AS9299 Philippine Long Distance Telephone Company	`0.35ms` from Manila, PH
193.207.3.144	AS210218 Open Fiber S.P.A.	`9.29ms` from Milan, IT
102.208.47.0	AS329475 KONNECT DATA NETWORKS LTD	`0.20ms` from Nairobi, KE
180.109.145.128	AS4134 CHINANET BACKBONE	`5.40ms` from Nanjing, CN

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.

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