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 18
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 18 domain names hosted across 12 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
91.207.185.19 ██████████ 1
217.28.134.64 ████████ 1
217.28.134.1 ██████████ 1
91.207.184.146 ████████ 1
91.207.184.152 ██████████ 1
217.28.134.76 ███████ 1
91.207.184.77 ██████████ 1

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Peers

There are 5 peers for this ASN.

Peers Name
AS201054 Stowarzyszenie e-Poludnie
AS42739 Hawe Telekom S.A. in Restructuring
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
91.207.185.237 AS203821 IT4 Polska Sp. z o.o. 2.39ms from Warsaw, PL
217.28.134.57 AS203821 IT4 Polska Sp. z o.o. 2.94ms from Warsaw, PL
91.207.184.241 AS203821 IT4 Polska Sp. z o.o. 2.02ms 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
5.107.177.77 AS5384 Emirates Internet 3.42ms from Al Fujairah City, AE
68.63.95.45 AS7922 Comcast Cable Communications, LLC 18.86ms from Atlanta, US
219.89.3.45 AS4771 Spark New Zealand Trading Ltd. 9.94ms from Auckland, NZ
52.33.218.93 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
190.14.254.253 AS27951 Media Commerce Partners S.A 7.74ms from Bogota, CO
125.66.25.45 AS4134 CHINANET-BACKBONE 9.71ms from Chengdu, CN
24.106.53.253 AS11427 Charter Communications Inc 15.27ms from Dallas, US
117.255.108.221 AS9829 National Internet Backbone 7.95ms from Delhi, IN
93.231.249.173 AS3320 Deutsche Telekom AG 8.91ms from Frankfurt am Main, DE
110.43.242.61 AS58466 CHINANET Guangdong province network 2.11ms from Guangzhou, CN
35.178.140.13 AS16509 Amazon.com, Inc. 0.17ms from London, GB
129.134.82.141 AS32934 Facebook, Inc. 0.20ms from Miami, US
167.63.234.77 AS6057 Administracion Nacional de Telecomunicaciones 1.59ms from Montevideo, UY
79.122.227.253 AS12772 Enforta Autonomous System 7.07ms from Moscow, RU
118.104.103.221 AS18126 Chubu Telecommunications Company, Inc. 6.20ms from Osaka, JP
90.52.64.125 AS3215 Orange S.A. 8.65ms from Paris, FR
34.231.233.13 AS14618 Amazon.com, Inc. 0.12ms from Reston, US
4.30.151.221 AS3356 Level 3 Parent, LLC 0.48ms from Santa Clara, US
124.66.131.125 AS3758 SingNet 0.96ms from Singapore, SG
31.154.224.237 AS12400 Partner Communications Ltd. 1.30ms from Tel Aviv, IL
71.163.191.221 AS701 Verizon Business 1.95ms from Ashburn, US
177.152.19.253 AS262399 GLP Telecomunicações Ltda. 5.76ms from Chapeco, BR
188.138.207.253 AS31252 StarNet Solutii SRL 0.64ms from Chisinau, MD
47.7.101.61 AS20115 Charter Communications LLC 15.20ms from Dallas, US
35.246.153.237 AS396982 Google LLC 0.10ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f8 217.28.134.74
traceroute to 217.28.134.74 (217.28.134.74): 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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