1. All IP Ranges
  2. 208.0.0.0/8
  3. 208.0.0.0/16
  4. AS174  | 208.0.20.0/23

208.0.20.0/23

AS174  ·  Cogent Communications, LLC

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Summary

Country United States
Domain cogentco.com
ASN AS174
Registry ARIN
ID COGC

WHOIS Details

NetHandle:      NET-208-0-0-0-1
OrgID:          COGC
Parent:         NET-208-0-0-0-0
NetName:        COGC
NetRange:       208.0.0.0 - 208.35.255.255
NetType:        allocation
RegDate:        1996-03-13
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

Nearby Ranges

BGP prefixes that overlap with 208.0.0.0/16

Range ASN Company Num of IPs
208.0.32.0/20 AS6372 Cogent Communications - IPENG 4,096
208.0.80.0/20 AS6372 Cogent Communications - IPENG 4,096
208.0.176.0/21 AS174 WorldPath Internet Services 2,048
208.0.96.0/21 AS14813 2,048
208.0.224.0/21 AS11139 Cable & Wireless Antigua and Barbuda Ltd 2,048
208.0.176.0/21 AS21547 WorldPath Internet Services 2,048
208.0.134.0/23 AS174 512
208.0.130.0/23 AS174 512
208.0.74.0/23 AS174 The Center for Creative Leadership 512
208.0.249.0/24 AS174 The National Academies 256
208.0.118.0/24 AS174 The Center for Creative Leadership 256
208.0.224.0/24 AS11139 Cable and Wireless Dominica 256
208.0.228.0/24 AS11139 International Gaming 256
208.0.230.0/24 AS11139 Cable and Wireless Dominica 256
208.0.49.0/24 AS22109 Universal Group, Inc. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
208.0.20.23 AS174 Cogent Communications, LLC 0.57ms from Chicago, 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
52.184.164.231 AS8075 Microsoft Corporation 0.19ms from Boydton, US
170.64.97.215 AS15108 Allo Communications LLC 7.57ms from Lincoln, US
76.171.238.71 AS20001 Charter Communications Inc 5.83ms from Los Angeles, US
49.147.151.39 AS9299 Philippine Long Distance Telephone Company 17.49ms from Manila, PH
123.15.177.151 AS4837 CHINA UNICOM China169 Backbone 4.89ms from Zhengzhou, CN
37.11.71.7 AS12479 Orange Espagne SA 9.18ms from Barcelona, ES
35.156.233.247 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
75.74.176.151 AS7922 Comcast Cable Communications, LLC 9.10ms from Miami, US
100.8.117.231 AS701 Verizon Business 1.92ms from New York City, US
141.208.184.23 AS1759 Telia Finland Oyj 0.39ms from Oulu, FI
70.172.73.71 AS22773 Cox Communications Inc. 4.45ms from Phoenix, US
34.204.44.119 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
39.112.252.103 AS9318 SK Broadband Co Ltd 5.50ms from Seoul, KR
188.169.210.119 AS35805 JSC Silknet 0.94ms from Tbilisi, GE
70.152.76.23 AS8075 Microsoft Corporation 0.62ms from Tokyo, JP
173.34.193.71 AS812 Rogers Communications Canada Inc. 2.23ms from Toronto, CA
122.57.39.183 AS4771 Spark New Zealand Trading Ltd. 1.01ms from Auckland, NZ
5.250.218.183 AS44725 Sinam LLC 15.31ms from Baku, AZ
113.205.22.151 AS4837 CHINA UNICOM China169 Backbone 2.57ms from Chongqing, CN
84.152.150.55 AS3320 Deutsche Telekom AG 4.47ms from Duesseldorf, DE
3.126.144.23 AS16509 Amazon.com, Inc. 0.12ms from Frankfurt am Main, DE
101.245.81.199 AS55990 Huawei Cloud Service data center 1.07ms from Guiyang, CN
18.134.56.23 AS16509 Amazon.com, Inc. 0.20ms from London, GB
201.123.96.151 AS8151 UNINET 9.79ms from Santiago de Queretaro, MX
171.125.78.167 AS4837 CHINA UNICOM China169 Backbone 4.11ms from Taiyuan, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 208.0.20.74
traceroute to 208.0.20.74 (208.0.20.74): 64 hops max, 52 byte packets
4 [AS174] 154.54.82.141 6.863 ms
6 [AS174] 208.0.20.74 0.955 ms
Measurement taken from IPinfo ProbeNet in Chicago, US
On

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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