81.186.128.0/18

AS8248  ·  Computer Technology Institute and Press Diophantus

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Summary

Country Greece
Domain sch.gr
ASN AS8248
Registry RIPE
ID GR-EDUNET

WHOIS Details

inetnum:        81.186.0.0 - 81.186.223.255
netname:        GR-EDUNET
country:        GR
org:            ORG-GHIN1-RIPE
admin-c:        GEN5-RIPE
tech-c:         GEN5-RIPE
status:         ASSIGNED PI
mnt-by:         GR-EDUNET-NOC
mnt-by:         RIPE-NCC-END-MNT
created:        2003-01-11T09:06:05Z
last-modified:  2025-07-24T07:57:13Z
source:         RIPE
sponsoring-org: ORG-GRaT1-RIPE
abuse-email:    abuse@sch.gr
abuse-c:        AR20144-RIPE
abuse-org:      ORG-GRaT1-RIPE

organisation:   ORG-GHIN1-RIPE
org-name:       Computer Technology Institute and Press Diophantus
country:        GR
org-type:       OTHER
address:        Campus, Building B
address:        Rio, 26500
address:        Patra, GREECE
mnt-ref:        GR-EDUNET-NOC
mnt-by:         GR-EDUNET-NOC
created:        2011-01-11T13:13:59Z
last-modified:  2023-07-24T09:47:20Z
source:         RIPE
abuse-c:        AR20144-RIPE
e-mail:         noc@sch.gr
abuse-email:    abuse@sch.gr
abuse-c:        AR20144-RIPE
abuse-org:      undefined

role:           GR EDUNET NOC
address:        Greek High-School Internet Network (backbone and access)
address:        Network Operations Center
address:        GREECE
phone:          +30 2610960340
fax-no:         +30 2610960350
e-mail:         noc@sch.gr
remarks:        trouble: mailto: abuse@sch.gr
admin-c:        MP19253-RIPE
tech-c:         DK24-RIPE
tech-c:         AL7412-RIPE
tech-c:         MO4480-RIPE
mnt-by:         GR-EDUNET-NOC
nic-hdl:        GEN5-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2025-07-24T10:47:17Z
source:         RIPE
abuse-mailbox:  abuse@sch.gr

Nearby Ranges

BGP prefixes that overlap with 81.186.0.0/16

Range ASN Company Num of IPs
81.186.240.0/20 AS29518 Bredband2 AB 4,096
81.186.224.0/20 AS35174 CityNet sp. z o.o. 4,096

Hosted domains

There are 6 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
81.186.147.67 sekprevezas.gq 3
81.186.177.60 geobikas.gr 2
81.186.147.65 stavrosf.gq 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

Pingable IPs

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

IP Address ASN Details
81.186.130.244 AS8248 Computer Technology Institute and Press Diophantus 21.89ms from Athens, GR
81.186.145.113 AS8248 Computer Technology Institute and Press Diophantus 22.84ms from Athens, GR
81.186.170.205 AS8248 Computer Technology Institute and Press Diophantus 29.89ms from Athens, GR
81.186.173.212 AS8248 Computer Technology Institute and Press Diophantus 12.56ms from Athens, GR
81.186.166.68 AS8248 Computer Technology Institute and Press Diophantus 10.98ms from Athens, GR
81.186.129.161 AS8248 Computer Technology Institute and Press Diophantus 8.38ms from Athens, GR
81.186.191.235 AS8248 Computer Technology Institute and Press Diophantus 10.77ms from Athens, GR
81.186.153.205 AS8248 Computer Technology Institute and Press Diophantus 7.96ms from Athens, GR
81.186.185.245 AS8248 Computer Technology Institute and Press Diophantus 24.60ms from Athens, GR
81.186.157.9 AS8248 Computer Technology Institute and Press Diophantus 25.23ms from Athens, GR
81.186.189.34 AS8248 Computer Technology Institute and Press Diophantus 14.92ms from Athens, GR
81.186.161.158 AS8248 Computer Technology Institute and Press Diophantus 22.61ms from Athens, GR
81.186.167.117 AS8248 Computer Technology Institute and Press Diophantus 24.56ms from Athens, GR
81.186.164.116 AS8248 Computer Technology Institute and Press Diophantus 11.87ms from Athens, GR
81.186.144.71 AS8248 Computer Technology Institute and Press Diophantus 11.82ms from Athens, GR
81.186.180.123 AS8248 Computer Technology Institute and Press Diophantus 38.82ms from Athens, GR
81.186.176.55 AS8248 Computer Technology Institute and Press Diophantus 25.49ms from Athens, GR
81.186.168.126 AS8248 Computer Technology Institute and Press Diophantus 9.01ms from Athens, GR
81.186.131.219 AS8248 Computer Technology Institute and Press Diophantus 9.16ms from Athens, GR
81.186.174.52 AS8248 Computer Technology Institute and Press Diophantus 11.40ms from Athens, GR
81.186.171.145 AS8248 Computer Technology Institute and Press Diophantus 8.98ms from Athens, GR
81.186.147.67 AS8248 Computer Technology Institute and Press Diophantus 14.44ms from Athens, GR
81.186.169.109 AS8248 Computer Technology Institute and Press Diophantus 13.38ms from Athens, GR
81.186.162.142 AS8248 Computer Technology Institute and Press Diophantus 11.48ms from Athens, GR
81.186.152.223 AS8248 Computer Technology Institute and Press Diophantus 22.74ms from Athens, GR

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
79.129.245.50 AS6799 Ote SA (Hellenic Telecommunications Organisation) 12.80ms from Athens, GR
67.149.111.226 AS12083 WideOpenWest Finance LLC 6.77ms from Atlanta, US
52.116.193.162 AS36351 IBM Cloud 1.10ms from Dallas, US
77.177.162.2 AS6805 Telefonica Germany GmbH & Co.OHG 3.74ms from Duesseldorf, DE
47.240.35.226 AS45102 Alibaba (US) Technology Co., Ltd. 1.50ms from Hong Kong, HK
103.107.161.162 AS137403 SALTSYNC 3.19ms from Kolkata, IN
45.157.207.114 AS35297 Dataline LLC 0.29ms from Kyiv, UA
83.170.66.34 AS13213 UK-2 Limited 0.45ms from London, GB
91.186.2.114 AS29550 Team Blue Carrier Limited 0.31ms from London, GB
109.173.127.194 AS42610 PJSC Rostelecom 1.34ms from Moscow, RU
212.171.41.34 AS3269 Telecom Italia S.p.A. 3.22ms from Naples, IT
188.225.57.178 AS9123 JSC "TIMEWEB" 0.68ms from Saint Petersburg, RU
155.102.54.2 AS24429 Zhejiang Taobao Network Co.,Ltd 0.09ms from San Jose, US
4.38.108.98 AS3356 Level 3 Parent, LLC 5.29ms from Santa Clara, US
182.229.23.34 AS17858 LG POWERCOMM 1.74ms from Seoul, KR
49.24.41.34 AS4766 Korea Telecom 5.55ms from Seoul, KR
72.215.28.18 AS22773 Cox Communications Inc. 0.35ms from Atlanta, US
115.240.189.114 AS55836 Reliance Jio Infocomm Limited 7.83ms from Bengaluru, IN
71.235.170.162 AS7922 Comcast Cable Communications, LLC 5.65ms from Boston, US
73.231.200.194 AS7922 Comcast Cable Communications, LLC 5.78ms from Fremont, US
208.84.4.2 AS8075 Microsoft Corporation 0.17ms from Johannesburg, ZA
194.28.86.50 AS196645 HOSTPRO LAB LLC 0.28ms from Kyiv, UA
188.255.73.2 AS42610 PJSC Rostelecom 1.45ms from Moscow, RU
187.67.182.82 AS28573 Claro NXT Telecomunicacoes Ltda 8.74ms from Rio de Janeiro, BR
192.185.224.2 AS46606 Unified Layer 1.95ms from Salt Lake City, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m8 81.186.173.212
traceroute to 81.186.173.212 (81.186.173.212): 8 hops max, 52 byte packets
2 [AS8280] 78.108.47.13 0.387 ms
3 *
4 *
5 [] 176.126.38.31 1.436 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Athens, GR
On

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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