Autonomous System details

AS42763

FPUH Czajen Krzysztof Czaja · czajen.pl

Poland

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AS42763 – FPUH Czajen Krzysztof Czaja

Field	Value
Country	Poland
Website	czajen.pl
Hosted domains	94
IPv4 addresses	3,584
IPv6 addresses	0
ASN type	ISP
Registry	ripe
Allocated	19 years ago on Apr 12, 2007
Updated	8 years ago on Sep 04, 2018

Netblock	Company	Num of IPs
77.87.0.0/21	FPUH Czajen Krzysztof Czaja	2,048
91.193.120.0/22	FPUH Czajen Krzysztof Czaja	1,024
193.33.174.0/23	FPUH Czajen Krzysztof Czaja	512
77.87.0.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.1.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.2.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.3.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.4.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.5.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.6.0/24	FPUH Czajen Krzysztof Czaja	256
77.87.7.0/24	FPUH Czajen Krzysztof Czaja	256
91.193.120.0/24	FPUH Czajen Krzysztof Czaja	256
91.193.121.0/24	FPUH Czajen Krzysztof Czaja	256
91.193.122.0/24	FPUH Czajen Krzysztof Czaja	256
91.193.123.0/24	FPUH Czajen Krzysztof Czaja	256
193.33.174.0/24	FPUH Czajen Krzysztof Czaja	256
193.33.175.0/24	FPUH Czajen Krzysztof Czaja	256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS42763
                                                OrgID:          AS42763
                                                ASName:         AS42763
                                                ASNumber:       AS42763
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 94 domain names hosted across 30 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
193.33.175.60	██████████	31
193.33.175.56	██████████	8
91.193.123.212	██████████	7
193.33.175.55	██████████	5
193.33.175.35	██████████	3
77.87.0.166	██████████	3
193.33.175.47	██████████	2
193.33.175.54	██████████	2
77.87.3.197	███████	2
91.193.121.104	██████████	2

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Peers

There are 10 peers for this ASN.

Peers	Name
AS12912	T-Mobile Polska S.A.
AS137409	GSL Networks Pty LTD
AS198424	HLG Internet Sp. z o.o.
AS24115	Equinix
AS24482	SG.GS
AS36236	NetActuate, Inc
AS43326	Fundacja Nasza Wizja
AS49544	i3D.net B.V
AS52110	IPC ROMAN ROMANOWSKI
AS6939	Hurricane Electric LLC

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Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS12912	T-Mobile Polska S.A.
AS198424	HLG Internet Sp. z o.o.

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Downstreams

There is 1 peer for this ASN.

Downstreams	Name
AS43326	Fundacja Nasza Wizja

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
91.193.121.77	AS42763 FPUH Czajen Krzysztof Czaja	`5.87ms` from Warsaw, PL
91.193.120.8	AS42763 FPUH Czajen Krzysztof Czaja	`5.33ms` from Warsaw, PL
77.87.5.6	AS42763 FPUH Czajen Krzysztof Czaja	`5.43ms` from Warsaw, PL
77.87.1.1	AS42763 FPUH Czajen Krzysztof Czaja	`5.64ms` from Warsaw, PL
77.87.2.1	AS42763 FPUH Czajen Krzysztof Czaja	`5.58ms` from Warsaw, PL
77.87.6.6	AS42763 FPUH Czajen Krzysztof Czaja	`5.75ms` from Warsaw, PL
193.33.175.3	AS42763 FPUH Czajen Krzysztof Czaja	`5.72ms` from Warsaw, PL
77.87.3.1	AS42763 FPUH Czajen Krzysztof Czaja	`5.77ms` from Warsaw, PL
91.193.122.53	AS42763 FPUH Czajen Krzysztof Czaja	`5.78ms` from Warsaw, PL
77.87.0.1	AS42763 FPUH Czajen Krzysztof Czaja	`5.65ms` from Warsaw, PL
91.193.123.137	AS42763 FPUH Czajen Krzysztof Czaja	`5.99ms` from Warsaw, PL
193.33.174.255	AS42763 FPUH Czajen Krzysztof Czaja	`0.67ms` 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
20.161.66.251	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
85.202.160.171	AS13627 Ambyre LLC	`0.49ms` from Frankfurt am Main, DE
69.194.3.107	AS4213 Krypt Technologies	`0.79ms` from San Jose, US
98.42.12.11	AS7922 Comcast Cable Communications, LLC	`7.24ms` from San Jose, US
220.125.129.219	AS4766 Korea Telecom	`3.23ms` from Seoul, KR
151.159.128.155	AS11602 South Dakota School of Mines & Technology	`14.43ms` from Sioux Falls, US
120.151.3.139	AS1221 Telstra Limited	`4.25ms` from Sydney, AU
43.212.112.171	AS16509 Amazon.com, Inc.	`0.97ms` from Taipei, TW
61.228.196.203	AS3462 Data Communication Business Group	`1.43ms` from Taipei, TW
112.104.73.139	AS4780 Digital United Inc.	`2.23ms` from Taipei, TW
174.181.20.43	AS7922 Comcast Cable Communications, LLC	`12.73ms` from Ashburn, US
184.154.204.251	AS32475 Internap Holding LLC	`0.89ms` from Chicago, US
14.189.177.123	AS45899 VNPT Corp	`8.61ms` from Da Nang, VN
46.98.110.139	AS15377 TRADITIONAL LLC	`7.44ms` from Kyiv, UA
38.79.121.235	AS212109 Squirrel Internet Ltd	`1.38ms` from London, GB
99.44.135.235	AS7018 AT&T Enterprises, LLC	`2.63ms` from Miami, US
180.147.195.171	AS17511 OPTAGE Inc.	`1.94ms` from Osaka, JP
179.57.99.203	AS14117 Telefonica del Sur S.A.	`15.84ms` from Santiago, CL
115.144.22.107	AS4766 Korea Telecom	`1.04ms` from Seoul, KR
42.54.81.11	AS4837 CHINA UNICOM China169 Backbone	`9.16ms` from Tieling, CN
24.79.243.27	AS6327 Shaw Communications	`2.27ms` from Winnipeg, CA
58.137.217.251	AS45800 Suan sunandha Rajabhat University, which is one university in Thailand	`3.02ms` from Bangkok, TH
160.1.127.155	AS8987 Amazon Data Services Ireland Ltd	`0.36ms` from Boardman, US
4.153.105.11	AS8075 Microsoft Corporation	`0.23ms` from Boydton, US
103.218.127.155	AS140641 YOTTA NETWORK SERVICES PRIVATE LIMITED	`1.38ms` from Delhi, IN

Traceroute

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

traceroute -a -n -q1 -f4 77.87.2.104

traceroute to 77.87.2.104 (77.87.2.104): 64 hops max, 52 byte packets

4 [AS198424] 194.31.60.246 9.524 ms

5 [AS42763] 193.33.175.18 9.147 ms

6 *

7 *

8 [AS42763] 77.87.2.104 10.469 ms

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On April 13th 2026

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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 AS42763 at robtex.

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