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  2. 205.0.0.0/8
  3. AS174  | 205.240.0.0/13

205.240.0.0/13

AS174  ·  Cogent Communications, LLC

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Summary

Country United States
Domain cogentco.com
ASN AS174
Registry ARIN
ID COGENT-205-240-0

WHOIS Details

NetHandle:      NET-205-240-0-0-1
OrgID:          COGC
Parent:         NET-205-0-0-0-0
NetName:        COGENT-205-240-0
NetRange:       205.240.0.0 - 205.247.255.255
NetType:        allocation
RegDate:        1995-04-24
Updated:        2025-12-23
Source:         ARIN


OrgID:          COGC
OrgName:        Cogent Communications, LLC
CanAllocate:    
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
RegDate:        2000-05-30
Updated:        2025-09-23
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgAdminHandle: IPALL-ARIN
OrgTechHandle:  IPALL-ARIN
OrgAbuseHandle: COGEN-ARIN
OrgNOCHandle:   ZC108-ARIN
Source:         ARIN


POCHandle:      IPALL-ARIN
IsRole:         Y
LastName:       IP Allocation
FirstName:      
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2002-11-13
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        ipalloc@cogentco.com
Source:         ARIN


POCHandle:      COGEN-ARIN
IsRole:         Y
LastName:       Cogent Abuse
FirstName:      
Street:         2450 N street, NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2002-11-13
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        abuse@cogentco.com
Source:         ARIN


POCHandle:      ZC108-ARIN
IsRole:         Y
LastName:       Cogent Communications
FirstName:      
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2001-01-24
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        noc@cogentco.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 205.240.0.0/13

Range ASN Company Num of IPs
205.243.61.0/24 AS328867 Cogent Communications - IPENG 256
205.243.61.0/24 AS328867 Cogent Communications - IPENG 256
205.243.79.0/24 AS36050 Fifth Third Bank 256
205.242.189.0/24 AS6428 Midwest Medical Supply 256
205.246.18.0/24 AS19643 Network Synergy 256
205.242.190.0/24 AS6428 National Benevolent Association 256
205.241.40.0/24 AS23005 Omnitracs, Inc. 256
205.243.61.0/24 AS174 Cogent Communications - IPENG 256
205.243.61.0/24 AS174 Cogent Communications - IPENG 256
205.246.165.0/24 AS174 MA Labs 256
205.247.31.0/24 AS15065 SLIC NETWORK SOLUTIONS, INC. 256
205.241.51.0/24 AS174 National Academy of Sciences 256
205.245.89.0/24 AS18571 Western Reserve Group 256
205.243.23.0/24 AS19105 FIRST BANK DATA CORP 256
205.242.20.0/23 AS174 Cogent Communications - IPENG 512
205.243.72.0/23 AS11924 Bridgeband Communications 512
205.244.148.0/22 AS14813 1,024
205.243.252.0/22 AS17046 Action Communications, Inc. 1,024
205.247.24.0/22 AS11140 Behr Process 1,024
205.240.128.0/20 AS8025 CHICKASAW TELEPHONE 4,096
205.247.0.0/20 AS3257 I-2000, Inc. 4,096

Nearby Ranges

BGP prefixes that overlap with 205.0.0.0/8

Range ASN Company Num of IPs
205.168.0.0/14 AS32932 CenturyLink Communications, LLC 262,144
205.168.0.0/14 AS3356 CenturyLink Communications, LLC 262,144
205.180.0.0/14 AS3738 Level 3 Parent, LLC 262,144
205.160.0.0/14 AS174 Cogent Communications, LLC 262,144
205.228.0.0/14 AS7270 Verizon Business 262,144
205.180.0.0/14 AS26478 Level 3 Parent, LLC 262,144
205.224.0.0/14 AS3356 Level 3 Parent, LLC 262,144
205.180.0.0/14 AS3356 Level 3 Parent, LLC 262,144
205.128.0.0/14 AS3356 Level 3 Parent, LLC 262,144
205.168.0.0/14 AS18453 CenturyLink Communications, LLC 262,144
205.168.0.0/14 AS209 CenturyLink Communications, LLC 262,144
205.180.0.0/14 AS27495 Level 3 Parent, LLC 262,144
205.168.0.0/14 AS23458 CenturyLink Communications, LLC 262,144
205.168.0.0/14 AS10835 CenturyLink Communications, LLC 262,144
205.228.0.0/14 AS9009 Verizon Business 262,144
205.168.0.0/14 AS401606 CenturyLink Communications, LLC 262,144
205.168.0.0/14 AS10753 CenturyLink Communications, LLC 262,144
205.168.0.0/14 AS398895 CenturyLink Communications, LLC 262,144
205.224.0.0/14 AS328867 Level 3 Parent, LLC 262,144
205.228.0.0/14 AS701 Verizon Business 262,144
205.218.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
205.198.0.0/15 AS174 Cogent Communications, LLC 131,072
205.133.0.0/16 AS36831 OARnet 65,536
205.250.0.0/16 AS25668 TELUS Communications Inc. 65,536
205.200.0.0/16 AS7122 Bell Canada 65,536
205.177.0.0/16 AS63199 PCCW Global, Inc. 65,536
205.221.0.0/16 AS6122 Iowa Communications Network 65,536
205.152.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
205.213.0.0/16 AS59 WiscNet 65,536
205.179.0.0/16 AS3257 GTT Americas, LLC 65,536
205.213.0.0/16 AS395963 WiscNet 65,536
205.213.0.0/16 AS36723 WiscNet 65,536
205.177.0.0/16 AS20263 PCCW Global, Inc. 65,536
205.190.0.0/16 AS22463 CDK Global, LLC 65,536
205.252.0.0/16 AS395753 PCCW Global, Inc. 65,536
205.133.0.0/16 AS600 OARnet 65,536
205.213.0.0/16 AS401492 WiscNet 65,536
205.232.0.0/16 AS7029 Windstream Communications LLC 65,536
205.177.0.0/16 AS37146 PCCW Global, Inc. 65,536
205.205.0.0/16 AS701 Verizon Business 65,536
205.206.0.0/16 AS852 TELUS Communications Inc. 65,536
205.213.0.0/16 AS55133 WiscNet 65,536
205.213.0.0/16 AS53599 WiscNet 65,536
205.158.0.0/16 AS2828 Verizon Business 65,536
205.213.0.0/16 AS40347 WiscNet 65,536

Hosted domains

There are 228 domain names hosted across 139 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
205.242.83.191 ovsp.com 11
205.245.187.166 chemtyte.biz 8
205.242.10.114 mielecareers.com 5
205.243.75.174 evoxacsamples.com 5
205.241.27.60 econometricsinternational.com 4
205.246.6.21 fedtaxrates.com 4
205.247.218.35 hsl-library.com 4
205.245.63.93 belltel.org 3
205.242.21.2 designerbutterflies.com 3
205.243.75.141 aboutwelchol.com 3
205.243.144.69 accounting-manual.com 3
205.242.83.24 floatfunds.com 3
205.242.12.159 bishoppaulsloverde.com 3
205.247.218.72 hexytime.com 3
205.242.12.158 bishoploverde.com 3
205.245.65.2 icheckacceptance.com 3
205.246.192.103 uagacareers.net 2
205.241.44.246 saveyourradio.org 2
205.243.112.110 fasteners-inc.com 2
205.246.0.84 ccahirenet.com 2

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
Read more

Pingable IPs

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

IP Address ASN Details
205.243.112.62 AS174 Cogent Communications, LLC 4.52ms from Minneapolis, US
205.243.71.225 AS40508 Mid America Nazarene University 1.36ms from Kansas City, US
205.243.127.1 AS14828 Hiawatha Broadband Communications, Inc 5.86ms from Minneapolis, US
205.240.35.191 AS174 Cogent Communications, LLC 8.30ms from Ashburn, US
205.242.20.1 AS174 Cogent Communications, LLC 1.19ms from Phoenix, US
205.243.123.1 AS14828 Hiawatha Broadband Communications, Inc 7.51ms from Minneapolis, US
205.242.176.1 AS6428 CDM 0.94ms from St. Louis, US
205.242.92.2 AS6428 CDM 0.89ms from St. Louis, US
205.241.44.245 AS174 Cogent Communications, LLC 0.79ms from Ashburn, US
205.240.45.96 AS174 Cogent Communications, LLC 8.28ms from Ashburn, US
205.241.40.167 AS23005 SWITCH, LTD 5.17ms from Los Angeles, US
205.243.116.113 AS14828 Hiawatha Broadband Communications, Inc 6.80ms from Minneapolis, US
205.242.187.1 AS6428 CDM 0.85ms from St. Louis, US
205.243.118.2 AS14828 Hiawatha Broadband Communications, Inc 5.66ms from Minneapolis, US
205.243.72.1 AS11924 Montana Opticom, LLC 15.11ms from Seattle, US
205.243.73.50 AS11924 Montana Opticom, LLC 15.63ms from Seattle, US
205.240.39.65 AS174 Cogent Communications, LLC 3.94ms from Ashburn, US
205.243.114.231 AS14828 Hiawatha Broadband Communications, Inc 5.68ms from Minneapolis, US
205.242.181.102 AS6428 CDM 0.92ms from St. Louis, US
205.243.122.1 AS14828 Hiawatha Broadband Communications, Inc 6.23ms from Minneapolis, US
205.242.191.254 AS6428 CDM 0.92ms from St. Louis, US
205.241.14.105 AS174 Cogent Communications, LLC 0.61ms from Denver, US
205.243.121.65 AS14828 Hiawatha Broadband Communications, Inc 6.25ms from Minneapolis, US
205.240.3.58 AS174 Cogent Communications, LLC 1.29ms from Denver, US
205.243.120.66 AS14828 Hiawatha Broadband Communications, Inc 5.66ms from Minneapolis, US

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
124.187.109.13 AS1221 Telstra Limited 2.04ms from Adelaide, AU
5.253.161.29 AS48095 XT GLOBAL NETWORKS LTD. 7.70ms from Bucharest, RO
129.79.37.253 AS87 Indiana University 5.35ms from Chicago, US
115.127.214.237 AS24342 BRACNet Limited 0.46ms from Dhaka, BD
3.70.190.125 AS16509 Amazon.com, Inc. 0.28ms from Frankfurt am Main, DE
172.99.190.77 AS63023 GTHost 0.18ms from London, GB
83.206.111.173 AS3215 Orange S.A. 7.23ms from Marseille, FR
196.235.10.77 AS37492 Orange Tunisie 18.85ms from Marseille, FR
191.91.218.93 AS27831 Colombia Móvil 8.90ms from Medellin, CO
172.104.4.13 AS63949 Akamai Connected Cloud 0.14ms from Morris Plains, US
119.63.118.253 AS9615 TOYOHASHI CABLE NETWORK INC. 4.61ms from Osaka, JP
186.201.168.13 AS10429 TELEFÔNICA BRASIL S.A 0.92ms from Osasco, BR
88.169.28.173 AS12322 Free SAS 2.60ms from Paris, FR
175.228.11.109 AS4766 Korea Telecom 1.57ms from Seoul, KR
119.200.7.237 AS4766 Korea Telecom 5.52ms from Seoul, KR
92.202.178.221 AS2527 Sony Network Communications Inc. 2.68ms from Tokyo, JP
45.159.206.253 AS60781 LeaseWeb Netherlands B.V. 0.23ms from Amsterdam, NL
170.82.145.141 AS263717 SOL TELECOMUNICACIONES S.A. 6.15ms from Asuncion, PY
67.191.144.221 AS7922 Comcast Cable Communications, LLC 3.93ms from Atlanta, US
185.195.52.141 AS8462 Tarr Kft. 7.99ms from Budapest, HU
210.41.217.45 AS4538 China Education and Research Network Center 5.06ms from Chengdu, CN
95.156.151.141 AS20875 JP HT d.d. Mostar 17.20ms from Ljubljana, SI
79.72.75.77 AS31898 Oracle Corporation 0.25ms from London, GB
99.132.128.29 AS7018 AT&T Enterprises, LLC 3.92ms from San Antonio, US
61.16.74.237 AS23856 SPTEL PTE. LTD. 0.69ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -m8 205.240.34.70
traceroute to 205.240.34.70 (205.240.34.70): 8 hops max, 52 byte packets
1 [AS43289] 45.153.124.1 6.705 ms
3 *
4 [AS174] 154.25.3.173 8.649 ms
5 [AS174] 154.54.56.62 11.035 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Chisinau, MD
On

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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.

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