AS number details

AS203821

IT4 Polska Sp. z o.o.  ·  it4polska.pl

Poland

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AS203821 – IT4 Polska Sp. z o.o.

Field Value
Country Poland
Website it4polska.pl
Hosted domains 17
Number of IPv4 768
Number of IPv6 0
ASN type ISP
Registry ripe
Allocated 10 years ago on Oct 23, 2015
Updated 5 years ago on Nov 16, 2020

IP Ranges

Netblock Company Num of IPs
217.28.134.0/24 Enformatel Sp. z o.o. 256
91.207.184.0/24 Sylwester Harasim 256
91.207.185.0/24 Sylwester Harasim 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS203821
                                                OrgID:          AS203821
                                                ASName:         AS203821
                                                ASNumber:       AS203821
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 17 domain names hosted across 11 IP addresses on this ASN.

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IP Address Domain Domains on this IP
217.28.134.45 ██████████ 4
91.207.184.157 ██████████ 3
91.207.184.42 █████████ 2
91.207.184.152 ██████████ 1
91.207.185.33 ██████████ 1
217.28.134.64 ████████ 1
91.207.184.77 ██████████ 1
91.207.184.146 ████████ 1
217.28.134.76 ███████ 1
217.28.134.1 ██████████ 1

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Peers

There are 6 peers for this ASN.

Peers Name
AS201054 Stowarzyszenie e-Poludnie
AS24482 SG.GS
AS36236 NetActuate, Inc
AS51465 FIXMAP GROUP
AS57608 DG-NET SA
AS62081 Stowarzyszenie e-Poludnie
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS51465 FIXMAP GROUP
AS57608 DG-NET SA
AS62081 Stowarzyszenie e-Poludnie
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Downstreams

There are no downstreams for this ASN.

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ASN API ASN Database Download

Pingable IPs

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

IP Address ASN Details
217.28.134.79 AS203821 IT4 Polska Sp. z o.o. 2.76ms from Warsaw, PL
91.207.184.225 AS203821 IT4 Polska Sp. z o.o. 1.93ms from Warsaw, PL
91.207.185.186 AS203821 IT4 Polska Sp. z o.o. 2.41ms from Warsaw, PL

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
15.204.219.173 AS16276 OVH SAS 1.39ms from Ashburn, US
8.131.81.141 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.27ms from Beijing, CN
181.140.205.205 AS13489 UNE EPM TELECOMUNICACIONES S.A. 8.62ms from Bogota, CO
130.213.142.221 AS8075 Microsoft Corporation 0.17ms from Boydton, US
199.15.135.237 AS14238 Falcon Communications LLC 0.44ms from Chicago, US
31.204.120.61 AS51906 recast IT GmbH & Co. KG 0.11ms from Duesseldorf, DE
89.0.240.157 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 2.19ms from Duesseldorf, DE
18.193.138.157 AS16509 Amazon.com, Inc. 0.47ms from Frankfurt am Main, DE
85.105.35.221 AS9121 Turk Telekomunikasyon Anonim Sirketi 14.46ms from Istanbul, TR
222.134.39.61 AS4837 CHINA UNICOM China169 Backbone 4.39ms from Jinan, CN
185.80.179.157 AS43858 WEBAXYS SAS 0.25ms from Paris, FR
104.191.140.141 AS7018 AT&T Enterprises, LLC 11.96ms from San Antonio, US
173.16.183.29 AS30036 Mediacom Communications Corp 9.57ms from St. Louis, US
99.239.220.13 AS812 Rogers Communications Canada Inc. 3.82ms from Toronto, CA
218.22.34.237 AS4134 CHINANET-BACKBONE 7.65ms from Wuhan, CN
170.37.204.45 AS1136 KPN B.V. 1.74ms from Amsterdam, NL
155.204.23.109 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.26ms from Ashburn, US
178.41.165.157 AS6855 Slovak Telekom, a.s. 1.73ms from Bratislava, SK
191.85.214.221 AS22927 Telefonica de Argentina 9.63ms from Buenos Aires, AR
196.74.116.125 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 7.17ms from Casablanca, MA
101.205.39.141 AS4837 CHINA UNICOM China169 Backbone 4.43ms from Chengdu, CN
23.100.55.173 AS8075 Microsoft Corporation 0.23ms from Dublin, IE
80.155.150.61 AS3320 Deutsche Telekom AG 0.49ms from Hamburg, DE
70.179.225.157 AS22773 Cox Communications Inc. 4.64ms from Kansas City, US
188.163.175.45 AS15895 "Kyivstar" PJSC 6.82ms from Kyiv, UA

Traceroute

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

$
traceroute -a -n -q1 -f8 91.207.185.185
traceroute to 91.207.185.185 (91.207.185.185): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Warsaw, PL
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203821 at robtex.

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