81.2.128.0/18

AS174 · Cogent Communications

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Summary

Country	Germany
Domain	cogentco.com
ASN	AS174
Registry	RIPE
ID	US-COGENT-20020315

WHOIS Details

inetnum:        81.2.128.0 - 81.2.191.255
netname:        US-COGENT-20020315
country:        DE
org:            ORG-GATI1-RIPE
geofeed:        https://geofeed.cogentco.com/geofeed.csv
admin-c:        CGNT-RIPE
tech-c:         CGNT-RIPE
status:         ALLOCATED PA
notify:         ripe-e4g9i3hq@cogentco.com
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         COGENT-ROOT-MNT
mnt-lower:      COGENT-HM-MNT
mnt-lower:      COGENT-ROOT-MNT
mnt-routes:     COGENT-ROUTE-MNT
created:        2002-03-15T13:06:36Z
last-modified:  2024-10-25T13:19:53Z
source:         RIPE
abuse-email:    abuse@cogentco.com
abuse-c:        CGNT-RIPE
abuse-org:      ORG-GATI1-RIPE

organisation:   ORG-GATI1-RIPE
org-name:       Cogent Communications Group, Inc.
country:        US
org-type:       LIR
address:        Lyoner Str. 15
address:        60528
address:        Frankfurt
address:        GERMANY
phone:          +17036577906
fax-no:         +496929989666
fax-no:         +13023402514
e-mail:         ripe-e4g9i3hq@cogentco.com
admin-c:        HK3724-RIPE
admin-c:        GR2753-RIPE
admin-c:        TT4648-RIPE
admin-c:        ED3641-RIPE
admin-c:        GM5562-RIPE
admin-c:        TA4019-RIPE
abuse-c:        CGNT-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        COGENT-ROOT-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         COGENT-ROOT-MNT
created:        2004-04-17T11:07:27Z
last-modified:  2023-03-08T12:12:05Z
source:         RIPE
abuse-email:    abuse@cogentco.com
abuse-c:        CGNT-RIPE
abuse-org:      undefined

role:           Cogent Communications Hostmaster
address:        Cogent Communications, Inc. 2450 N Street NW Washington, DC 20037 USA
phone:          +1 703 657 7906
e-mail:         ipalloc@cogentco.com
abuse-mailbox:  abuse@cogentco.com
admin-c:        GR2753-RIPE
tech-c:         CCRA-RIPE
tech-c:         GR2753-RIPE
tech-c:         TA4019-RIPE
tech-c:         ED3641-RIPE
tech-c:         TT4648-RIPE
tech-c:         GM5562-RIPE
nic-hdl:        CGNT-RIPE
mnt-by:         COGENT-ROOT-MNT
created:        2004-10-28T23:56:17Z
last-modified:  2022-06-23T07:51:38Z
source:         RIPE

route:          81.2.142.0/23
origin:         AS198545
mnt-by:         COGENT-ROUTE-MNT
mnt-by:         COGENT-HM-MNT
created:        2024-12-27T16:43:56Z
last-modified:  2024-12-27T16:43:56Z
source:         RIPE

Overlapping Ranges

BGP prefixes that are contained by 81.2.128.0/18

Range	ASN	Company	Num of IPs
81.2.149.0/24	AS174	Netspark LTD	256
81.2.128.0/24	AS19970	CarrierDomain Inc	256
81.2.130.0/24	AS174	NICTECH P C	256
81.2.191.0/24	AS200736	MEDIANET INVEST M.I.K.E	256
81.2.190.0/24	AS205520	XTB-COGENT	256
81.2.187.0/24	AS209784	WIFISAX GmbH	256
81.2.188.0/23	AS174	Cogent Communications Group, Inc.	512
81.2.142.0/23	AS174	Flex Network	512
81.2.132.0/22	AS203591	TECNO GENERAL S.R.L	1,024
81.2.152.0/21	AS48945	Independent Fibre Networks	2,048
81.2.168.0/21	AS48945	Independent Fibre Networks	2,048
81.2.160.0/21	AS48945	Independent Fibre Networks	2,048
81.2.176.0/21	AS48945	Independent Fibre Networks	2,048

Nearby Ranges

BGP prefixes that overlap with 81.2.0.0/16

Range	ASN	Company	Num of IPs
81.2.64.0/18	AS20712	Andrews & Arnold Ltd	16,384
81.2.0.0/18	AS12332	PJSC Rostelecom	16,384
81.2.192.0/18	AS24806	INTERNET CZ, a.s.	16,384
81.2.0.0/19	AS12332	PJSC Rostelecom	8,192
81.2.32.0/19	AS12332	PJSC Rostelecom	8,192
81.2.168.0/21	AS48945	Independent Fibre Networks	2,048
81.2.152.0/21	AS48945	Independent Fibre Networks	2,048
81.2.160.0/21	AS48945	Independent Fibre Networks	2,048
81.2.176.0/21	AS48945	Independent Fibre Networks	2,048
81.2.56.0/21	AS12389	Dynamic Broadband Clients. Spassk	2,048
81.2.132.0/22	AS203591	TECNO GENERAL S.R.L	1,024
81.2.6.0/23	AS12389	Dynamic Broadband Clients.	512
81.2.188.0/23	AS174	Cogent Communications Group, Inc.	512
81.2.48.0/23	AS12389	Intourist-Nakhodka Co. Ltd	512
81.2.44.0/23	AS12389	Plastun node of electric communication	512
81.2.142.0/23	AS174	Flex Network	512
81.2.10.0/24	AS12389	Nurisoft	256
81.2.0.0/24	AS12389	RIMSCO	256
81.2.128.0/24	AS19970	CarrierDomain Inc	256
81.2.190.0/24	AS205520	XTB-COGENT	256
81.2.2.0/24	AS12389	Dynamic Broadband Clients.	256
81.2.17.0/24	AS12389	Dynamic Broadband Clients.	256
81.2.187.0/24	AS209784	WIFISAX GmbH	256
81.2.26.0/24	AS12389	Promsnab, ltd.	256
81.2.130.0/24	AS174	NICTECH P C	256
81.2.8.0/24	AS12389	Dynamic Broadband Clients.	256
81.2.12.0/24	AS12389	Dynamic Broadband Clients.	256
81.2.149.0/24	AS174	Netspark LTD	256
81.2.191.0/24	AS200736	MEDIANET INVEST M.I.K.E	256
81.2.14.0/24	AS12389	Processing Service Center	256

Hosted domains

There are 114 domain names hosted across 57 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.2.131.80	brotundspiele.de	1
81.2.149.9	vogrin.at	1
81.2.131.110	tf2mail.de	1
81.2.129.124	dustandcream.eu	1
81.2.185.72	rohrwasser.cz	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

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Pingable IPs

6,013 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
81.2.163.225	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.35ms from London, GB
81.2.143.129	AS198545 FLEX NETWORK SARL	0.23ms from Paris, FR
81.2.148.25	AS201042 SD1-Telecom SRL	1.94ms from Brussels, BE
81.2.175.180	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.55ms from London, GB
81.2.135.226	AS203591 TECNO GENERAL S.R.L	3.98ms from Milan, IT
81.2.186.25	AS174 Cogent Communications	0.87ms from Frankfurt am Main, DE
81.2.155.98	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.24ms from London, GB
81.2.171.48	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.14ms from London, GB
81.2.170.253	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.50ms from London, GB
81.2.189.121	AS208905 Exelera Telecom Ltd	1.98ms from Tel Aviv, IL
81.2.158.92	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.08ms from London, GB
81.2.159.26	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.15ms from London, GB
81.2.179.159	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.12ms from London, GB
81.2.153.78	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.15ms from London, GB
81.2.167.195	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.12ms from London, GB
81.2.156.102	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.25ms from London, GB
81.2.152.176	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.08ms from London, GB
81.2.146.181	AS208905 Exelera Telecom Ltd	1.95ms from Tel Aviv, IL
81.2.187.254	AS209784 WIFISAX GmbH	2.44ms from Amsterdam, NL
81.2.180.218	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.25ms from London, GB
81.2.181.184	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	1.16ms from London, GB
81.2.133.149	AS203591 TECNO GENERAL S.R.L	2.79ms from Milan, IT
81.2.154.208	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	2.14ms from London, GB
81.2.188.97	AS208905 Exelera Telecom Ltd	1.95ms from Tel Aviv, IL
81.2.145.49	AS208905 Exelera Telecom Ltd	1.97ms from Tel Aviv, IL

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
211.68.192.178	AS4538 China Education and Research Network Center	6.10ms from Beijing, CN
130.73.24.2	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	0.75ms from Berlin, DE
130.73.180.66	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	0.85ms from Berlin, DE
190.60.98.66	AS18747 IFX Corporation	0.77ms from Bogota, CO
75.150.104.130	AS7922 Comcast Cable Communications, LLC	8.72ms from Boston, US
196.120.116.2	AS36925 MEDITELECOM	10.34ms from Casablanca, MA
103.99.144.178	AS138754 Kerala Vision Broad Band Private Limited	9.91ms from Chennai, IN
18.190.143.18	AS16509 Amazon.com, Inc.	0.15ms from Columbus, US
72.48.12.2	AS7459 Grande Communications Networks, LLC	6.90ms from Dallas, US
78.94.98.34	AS3209 Vodafone GmbH	6.55ms from Frankfurt am Main, DE
141.164.167.242	AS25019 Saudi Telecom Company JSC	2.84ms from Jeddah, SA
81.109.1.178	AS5089 Virgin Media Limited	11.04ms from London, GB
82.68.39.210	AS13037 Zen Internet Ltd	1.06ms from Manchester, GB
95.229.58.242	AS3269 Telecom Italia S.p.A.	4.17ms from Milan, IT
59.53.75.2	AS134238 CHINANET Jiangx province IDC network	0.87ms from Nanchang, CN
180.96.70.98	AS137702 Nanjing, Jiangsu Province, P.R.China.	7.60ms from Nanjing, CN
171.107.86.50	AS138169 China Telecom	0.74ms from Nanning, CN
131.239.156.18	AS46887 Crown Castle Fiber LLC	0.51ms from New York City, US
79.100.135.130	AS8866 Vivacom Bulgaria EAD	0.94ms from Sofia, BG
94.124.14.2	AS42927 S-NET Sp. z o.o.	6.95ms from Warsaw, PL
76.100.220.18	AS7922 Comcast Cable Communications, LLC	7.40ms from Ashburn, US
35.81.67.226	AS16509 Amazon.com, Inc.	0.29ms from Boardman, US
3.30.236.210	AS8987 Amazon Data Services Ireland Ltd	0.36ms from Boardman, US
177.52.208.2	AS52986 Vupt Provedora de Internet Ltda	2.86ms from Chapeco, BR
5.178.104.242	AS215433 Soleex BV	0.64ms from Frankfurt am Main, DE

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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