81.6.128.0/21

AS30778 · Kielce University of Technology

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Summary

Country	Poland
Domain	symetra.pl
ASN	AS30778
Registry	RIPE
ID	DX4-NETWORK

WHOIS Details

inetnum:        81.6.134.0 - 81.6.135.255
netname:        DX4-NETWORK
descr:          Symetra, www.dx4.pl
country:        PL
admin-c:        AW4504-RIPE
tech-c:         WW1362-RIPE
status:         ASSIGNED PA
mnt-by:         KUT-PL
created:        2006-10-24T14:11:05Z
last-modified:  2013-07-24T18:39:32Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        KIE8-RIPE
abuse-org:      ORG-KUoT1-RIPE

person:         Anna Wojtowicz
address:        Kilinskiego 16
address:        28-100 Busko-Zdroj
address:        PL
phone:          +48 41 3808033
e-mail:         [email protected]
nic-hdl:        AW4504-RIPE
mnt-by:         KUT-PL
created:        2013-07-24T18:39:32Z
last-modified:  2013-07-24T18:39:32Z
source:         RIPE

person:         Wojciech Wielogorski
address:        Kilinskiego 16
address:        28-100 Busko-Zdroj
address:        PL
phone:          +48 41 3808033
e-mail:         [email protected]
nic-hdl:        WW1362-RIPE
mnt-by:         KUT-PL
created:        2013-07-24T18:39:32Z
last-modified:  2013-07-24T18:39:32Z
source:         RIPE

route:          81.6.128.0/21
descr:          Metropolitan Area Network KIELMAN
descr:          Kielce, POLAND
origin:         AS30778
remarks:        removed cross-nfy: TS408-RIPE
notify:         [email protected]
mnt-by:         KUT-PL
created:        2003-12-23T07:28:13Z
last-modified:  2004-01-30T16:29:40Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 81.6.0.0/16

Range	ASN	Company	Num of IPs
81.6.64.0/18	AS15897	Vodafone Telekomunikasyon A.S.	16,384
81.6.192.0/18	AS13285	TalkTalk Communications Limited	16,384
81.6.0.0/19	AS1836	green.ch AG	8,192
81.6.48.0/20	AS1836	green.ch AG	4,096
81.6.32.0/20	AS13030	Init7 (Switzerland) Ltd.	4,096
81.6.140.0/24	AS43386	N3T Projekt	256
81.6.187.0/24	AS48227	Swietokrzyski Urzad Wojewodzki	256
81.6.136.0/24	AS208930	INTERBIT	256
81.6.136.0/24	AS30778	INTERBIT	256
81.6.140.0/24	AS30778	N3T Projekt	256
81.6.139.0/24	AS43386	N3T Projekt	256

Hosted domains

There are no domains currently hosted on this ASN.

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Pingable IPs

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

IP Address	ASN	Details
81.6.128.210	AS30778 Kielce University of Technology	`3.73ms` 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
34.222.63.37	AS16509 Amazon.com, Inc.	`0.53ms` from Boardman, US
35.162.121.133	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
71.232.93.5	AS7922 Comcast Cable Communications, LLC	`8.09ms` from Boston, US
91.177.93.165	AS5432 Proximus NV	`2.30ms` from Brussels, BE
181.97.68.5	AS7303 Telecom Argentina S.A.	`1.82ms` from Buenos Aires, AR
38.158.162.133	AS13693 Vexus Fiber	`8.27ms` from Dallas, US
92.39.120.5	AS32806 MTNSAT Holdings LLC	`6.50ms` from Frankfurt am Main, DE
90.251.5.245	AS5378 Vodafone Limited	`11.67ms` from London, GB
4.59.175.213	AS3356 Level 3 Parent, LLC	`0.35ms` from Los Angeles, US
46.235.68.197	AS47954 Alpha Net Telecom Ltd	`0.90ms` from Moscow, RU
71.45.230.165	AS33363 Charter Communications, Inc	`13.48ms` from Murfreesboro, US
47.20.2.117	AS6128 Cablevision Systems Corp.	`2.43ms` from New York City, US
104.99.7.181	AS20940 Akamai International B.V.	`0.11ms` from Perth, AU
112.219.155.245	AS3786 LG DACOM Corporation	`1.74ms` from Seoul, KR
13.112.65.21	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
38.6.12.5	AS398993 PEG TECH INC	`0.92ms` from Tokyo, JP
136.56.35.149	AS16591 Google Fiber Inc.	`7.07ms` from Ashburn, US
97.81.203.165	AS20115 Charter Communications LLC	`10.23ms` from Atlanta, US
68.162.246.5	AS701 Verizon Business	`1.76ms` from Boston, US
172.219.183.117	AS852 TELUS Communications Inc.	`0.96ms` from Calgary, CA
71.79.81.85	AS10796 Charter Communications Inc	`18.12ms` from Columbus, US
45.125.14.197	AS55933 Cloudie Limited	`1.09ms` from Hong Kong, HK
223.235.196.197	AS24560 Bharti Airtel Ltd., Telemedia Services	`15.47ms` from Mumbai, IN
68.2.151.85	AS22773 Cox Communications Inc.	`5.20ms` from Phoenix, US
203.236.231.21	AS9286 KINX	`2.77ms` 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 -f2 -m9 81.6.135.232

traceroute to 81.6.135.232 (81.6.135.232): 9 hops max, 52 byte packets

2 [] 195.182.219.12 5.948 ms

3 [AS30778] 81.6.128.72 3.985 ms

4 [AS30778] 81.6.128.65 9.671 ms

5 *

6 [AS30778] 81.6.128.65 4.544 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On December 14th 2025

What are IP address ranges?

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