212.101.128.0/18

AS28933 · University of Ljubljana, Faculty of Electrical Engineering

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Summary

Country	Slovenia
Domain	ltfe.org
ASN	AS28933
Registry	RIPE
ID	SI-LT-FE-20091006

WHOIS Details

inetnum:        212.101.128.0 - 212.101.191.255
netname:        SI-LT-FE-20091006
country:        SI
org:            ORG-UoLF1-RIPE
admin-c:        LTFE-RIPE
tech-c:         LTFE-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-LTFE
mnt-routes:     MNT-LTFE
notify:         lir@ltfe.org
created:        2009-10-06T10:33:18Z
last-modified:  2017-02-20T11:18:52Z
source:         RIPE
abuse-email:    andrej.kos@fe.uni-lj.si
abuse-c:        AR17258-RIPE
abuse-org:      ORG-UoLF1-RIPE

organisation:   ORG-UoLF1-RIPE
org-name:       University of Ljubljana, Faculty of Electrical Engineering
country:        SI
org-type:       LIR
address:        Trzaska 25
address:        1000
address:        Ljubljana
address:        SLOVENIA
phone:          +38614768888
fax-no:         +38614768732
e-mail:         andrej.kos@fe.uni-lj.si
abuse-c:        AR17258-RIPE
admin-c:        AK633-RIPE
admin-c:        UNIX
admin-c:        UNIX
admin-c:        SK15753-RIPE
mnt-ref:        MNT-LTFE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-LTFE
created:        2009-09-03T15:24:35Z
last-modified:  2023-02-23T14:26:44Z
source:         RIPE

role:           LTFE LIR
address:        Laboratory for Telecommunications
address:        Faculty of Electrical Engineering
address:        University of Ljubljana
address:        Trzaska 25
address:        1000 Ljubljana
address:        Slovenia
abuse-mailbox:  abuse@ltfe.org
remarks:        LTFE LIR role object
remarks:        -------------------------------------------------------
remarks:        Please send abuse & spam notification to abuse@ltfe.org
remarks:        -------------------------------------------------------
e-mail:         lir@ltfe.org
admin-c:        AK633-RIPE
admin-c:        SK15753-RIPE
tech-c:         UNIX
nic-hdl:        ltfe-ripe
mnt-by:         MNT-LTFE
created:        2009-09-14T16:41:38Z
last-modified:  2023-02-23T14:28:47Z
source:         RIPE

route:          212.101.128.0/18
descr:          LTFE first alloc
origin:         AS28933
mnt-by:         MNT-LTFE
created:        2009-10-19T13:30:51Z
last-modified:  2009-10-19T13:30:51Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 212.101.0.0/16

Range	ASN	Company	Num of IPs
212.101.96.0/19	AS201178	MYNET INTERNET TEKNOLOJI ANONIM SIRKETI	8,192
212.101.192.0/19	AS12437	DTS Systeme Muenster GmbH	8,192
212.101.0.0/19	AS9044	BSE Software GmbH	8,192
212.101.64.0/19	AS9165	PROSODIE IBERICA SL	8,192
212.101.231.0/24	AS31126	212.101.231.0/24	256
212.101.232.0/24	AS31126	212.101.232.0/24	256
212.101.233.0/24	AS31126	SODETEL S.A.L.	256
212.101.235.0/24	AS31126	212.101.235.0/24	256
212.101.246.0/24	AS31126	212.101.246.0/24	256
212.101.249.0/24	AS31126	212.101.249.0/24	256
212.101.252.0/24	AS31126	212.101.252.0/24	256
212.101.253.0/24	AS31126	212.101.253.0/24	256
212.101.254.0/24	AS31126	212.101.254.0/24	256
212.101.255.0/24	AS31126	212.101.255.0/24	256
212.101.226.0/24	AS31126	212.101.226.0/24	256
212.101.228.0/24	AS31126	212.101.228.0/24	256

Hosted domains

There are 5 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
212.101.140.50	tdc.si	3
212.101.140.58	carpedigem.eu	1
212.101.137.72	cyberpod.si	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

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

IP Address	ASN	Details
212.101.137.120	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.57ms` from Ljubljana, SI
212.101.136.1	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.98ms` from Ljubljana, SI
212.101.143.5	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`1.25ms` from Ljubljana, SI
212.101.174.2	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.79ms` from Ljubljana, SI
212.101.140.21	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.75ms` from Ljubljana, SI
212.101.139.10	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.79ms` from Ljubljana, SI
212.101.172.1	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.78ms` from Ljubljana, SI
212.101.133.1	AS28933 University of Ljubljana, Faculty of Electrical Engineering	`0.82ms` from Ljubljana, SI

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
94.52.99.194	AS48161 NEXTGEN COMMUNICATIONS SRL	`7.55ms` from Bucharest, RO
86.148.163.82	AS2856 British Telecommunications PLC	`1.69ms` from London, GB
94.9.92.34	AS5607 Sky UK Limited	`0.98ms` from London, GB
96.5.161.82	AS11686 Zayo Bandwidth	`2.04ms` from Los Angeles, US
189.202.232.226	AS18734 Operbes, S.A. de C.V.	`7.57ms` from Monterrey, MX
90.103.164.82	AS3215 Orange S.A.	`7.37ms` from Paris, FR
44.195.18.82	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
79.46.222.162	AS3269 Telecom Italia S.p.A.	`2.53ms` from Rome, IT
121.179.147.2	AS4766 Korea Telecom	`5.32ms` from Seoul, KR
103.131.247.18	AS131746 PT. Medianusa Permana	`8.89ms` from Singapore, SG
178.55.10.226	AS16086 DNA Oyj	`11.68ms` from Stockholm, SE
113.34.70.162	AS17506 ARTERIA Networks Corporation	`1.09ms` from Tokyo, JP
195.29.93.242	AS5391 Hrvatski Telekom d.d.	`1.09ms` from Zagreb, HR
122.114.40.18	AS4837 CHINA UNICOM China169 Backbone	`5.45ms` from Zhengzhou, CN
198.118.194.34	AS1848 National Aeronautics and Space Administration	`2.30ms` from Ashburn, US
16.145.52.226	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
54.239.34.242	AS16509 Amazon.com, Inc.	`0.42ms` from Dublin, IE
131.161.20.2	AS264366 EVALDO SOUSA CARVALHO-ME	`12.73ms` from Fortaleza, BR
193.31.28.242	AS213250 Dominic Scholz trading as ITP-Solutions GmbH & Co. KG	`1.10ms` from Frankfurt am Main, DE
113.186.182.18	AS45899 VNPT Corp	`3.01ms` from Hanoi, VN
94.252.32.146	AS56665 Proximus Luxembourg S.A.	`0.82ms` from Luxembourg, LU
151.78.196.114	AS1267 WIND TRE S.P.A.	`2.50ms` from Rome, IT
50.18.4.242	AS16509 Amazon.com, Inc.	`0.13ms` from San Jose, US
124.199.254.242	AS17864 SK Broadband Co Ltd	`1.77ms` from Seoul, KR
14.60.228.162	AS4766 Korea Telecom	`4.72ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m9 212.101.190.36

traceroute to 212.101.190.36 (212.101.190.36): 9 hops max, 52 byte packets

4 [AS9009] 212.103.51.251 17.594 ms

5 *

6 [AS5603] 95.176.242.7 26.21 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Brussels, BE

On November 14th 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.

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