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  2. 216.0.0.0/8
  3. AS174  | 216.28.0.0/15

216.28.0.0/15

AS174  ·  Cogent Communications, LLC

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Summary

Country United States
Domain cogentco.com
ASN AS174
Registry ARIN
ID COGENT-FNSI-0005

WHOIS Details

NetHandle:      NET-216-28-0-0-1
OrgID:          COGC
Parent:         NET-216-0-0-0-0
NetName:        COGENT-FNSI-0005
NetRange:       216.28.0.0 - 216.29.255.255
NetType:        allocation
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
RegDate:        1998-07-17
Updated:        2012-03-02
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 216.28.0.0/15

Range ASN Company Num of IPs
216.29.96.0/24 AS29787 RDI Corporation 256
216.29.200.0/24 AS174 Oribus 256
216.29.207.0/24 AS29787 RDI Corporation 256
216.29.249.0/24 AS29787 RDI Corporation 256
216.29.250.0/24 AS29787 RDI Corporation 256
216.29.40.0/24 AS29787 RDI Corporation 256
216.29.55.0/24 AS174 Oribus 256
216.28.9.0/24 AS174 Oribus 256
216.28.243.0/24 AS272767 IMPACTO NETWORK INTERNET LTDA 256
216.28.210.0/24 AS274155 DIGITAL DOT GROUP SAS 256
216.28.213.0/24 AS274549 HEAVEN SYSTEM SOLUCOES LTDA 256
216.28.245.0/24 AS29787 RDI Corporation 256
216.28.8.0/24 AS29787 RDI Corporation 256
216.29.113.0/24 AS29787 RDI Corporation 256
216.29.165.0/24 AS29787 RDI Corporation 256
216.29.205.0/24 AS29787 RDI Corporation 256
216.28.208.0/23 AS52762 TRIADE FIBRA 512
216.28.194.0/23 AS61817 Topnet Marajo LTDA 512
216.28.192.0/23 AS274603 FJ Telecom 512
216.28.246.0/23 AS273751 Mnet Telecom Provedor de Acesso A Internet LTDA 512
216.28.196.0/22 AS52762 TRIADE FIBRA 1,024
216.28.248.0/21 AS271023 Sp Tec Seguranca e Inteligencia Cibernetica LTDA 2,048
216.28.200.0/21 AS52762 TRIADE FIBRA 2,048
216.28.224.0/20 AS52419 COOPERATIVA DE ELECTRICIDAD SERVICIO Y OBRAS PUBLICAS (CESOP) 4,096

Nearby Ranges

BGP prefixes that overlap with 216.0.0.0/8

Range ASN Company Num of IPs
216.60.0.0/14 AS7018 AT&T Enterprises, LLC 262,144
216.32.0.0/14 AS3561 CenturyLink Communications, LLC 262,144
216.100.0.0/14 AS7018 AT&T Enterprises, LLC 262,144
216.88.0.0/14 AS3561 CenturyLink Communications, LLC 262,144
216.100.0.0/14 AS30443 AT&T Enterprises, LLC 262,144
216.60.0.0/14 AS7287 AT&T Enterprises, LLC 262,144
216.32.0.0/14 AS42427 CenturyLink Communications, LLC 262,144
216.88.0.0/14 AS46215 CenturyLink Communications, LLC 262,144
216.100.0.0/14 AS7287 AT&T Enterprises, LLC 262,144
216.88.0.0/14 AS19650 CenturyLink Communications, LLC 262,144
216.76.0.0/14 AS6389 AT&T Enterprises, LLC 262,144
216.60.0.0/14 AS16788 AT&T Enterprises, LLC 262,144
216.140.0.0/14 AS3356 Level 3 Parent, LLC 262,144
216.140.0.0/14 AS29855 Level 3 Parent, LLC 262,144
216.84.0.0/15 AS393478 Level 3 Parent, LLC 131,072
216.94.0.0/15 AS701 Verizon Business 131,072
216.206.0.0/15 AS19031 CenturyLink Communications, LLC 131,072
216.206.0.0/15 AS17385 CenturyLink Communications, LLC 131,072
216.206.0.0/15 AS17078 CenturyLink Communications, LLC 131,072
216.84.0.0/15 AS3356 Level 3 Parent, LLC 131,072
216.160.0.0/15 AS3356 CenturyLink Communications, LLC 131,072
216.206.0.0/15 AS25739 CenturyLink Communications, LLC 131,072
216.84.0.0/15 AS393538 Level 3 Parent, LLC 131,072
216.84.0.0/15 AS3549 Level 3 Parent, LLC 131,072
216.160.0.0/15 AS3912 CenturyLink Communications, LLC 131,072
216.84.0.0/15 AS63163 Level 3 Parent, LLC 131,072
216.206.0.0/15 AS209 CenturyLink Communications, LLC 131,072
216.206.0.0/15 AS46849 CenturyLink Communications, LLC 131,072
216.160.0.0/15 AS209 CenturyLink Communications, LLC 131,072
216.149.0.0/16 AS2828 Verizon Business 65,536
216.111.0.0/16 AS209 CenturyLink Communications, LLC 65,536
216.111.0.0/16 AS10753 CenturyLink Communications, LLC 65,536
216.253.0.0/16 AS3549 Level 3 Parent, LLC 65,536
216.199.0.0/16 AS7029 Windstream Communications LLC 65,536
216.191.0.0/16 AS6461 Zayo Bandwidth 65,536
216.156.0.0/16 AS2828 Verizon Business 65,536
216.204.0.0/16 AS7029 Windstream Communications LLC 65,536
216.214.0.0/16 AS7029 Windstream Communications LLC 65,536
216.112.0.0/16 AS2828 Verizon Business 65,536
216.13.0.0/16 AS6461 Zayo Bandwidth 65,536
216.148.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
216.43.0.0/16 AS7029 Windstream Communications LLC 65,536
216.164.0.0/16 AS6079 RCN 65,536
216.242.0.0/16 AS13645 BroadbandONE, LLC 65,536

Hosted domains

There are 359 domain names hosted across 101 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
216.29.152.198 penafiel.mx 16
216.29.200.51 doveenterprisesinc.com 7
216.29.200.233 kidsnkik.com 6
216.28.188.50 3dmotionarchery.com 4
216.29.34.21 ouray.k12.co.us 3
216.28.188.160 thefsbhomeloans.com 2
216.29.155.201 v1golf.com 2
216.29.238.210 parklane.systems 1
216.28.36.55 ifstpro.ca 1
216.29.122.27 researchcentral.com 1
216.29.177.105 itisdevelopment.com 1
216.28.188.162 thelocalcreditunion-consent.com 1
216.29.200.117 oribus.org 1
216.29.36.21 huntervincentcontracting.com 1
216.29.200.18 sslmail.info 1
216.29.254.54 worthingtonind.com 1
216.29.57.1 logibase.de 1
216.29.229.209 eapfunds.com 1
216.29.112.145 dfwdatapros.com 1
216.29.32.21 kikiyu.com 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
Read more

Pingable IPs

3,220 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
216.28.236.72 AS52419 CESOP 5.74ms from Buenos Aires, AR
216.28.242.1 AS174 Cogent Communications, LLC 9.49ms from San Miguel, SV
216.29.113.25 AS29787 Web Force Systems 0.09ms from Columbus, US
216.28.194.1 AS61817 Halley Telecom Comercio & Serviço Ltda 40.70ms from São Paulo, BR
216.28.229.105 AS52419 CESOP 5.94ms from Buenos Aires, AR
216.28.225.14 AS52419 CESOP 5.84ms from Buenos Aires, AR
216.29.55.106 AS174 Cogent Communications, LLC 5.37ms from Cincinnati, US
216.29.207.81 AS29787 Web Force Systems 0.13ms from Columbus, US
216.28.245.201 AS29787 Web Force Systems 0.09ms from Columbus, US
216.28.135.1 AS174 Cogent Communications, LLC 0.19ms from Rosario, AR
216.28.211.1 AS174 Cogent Communications, LLC 20.06ms from Bogota, CO
216.28.224.74 AS52419 CESOP 5.99ms from Buenos Aires, AR
216.29.153.1 AS14001 Vision Net Ltd 4.00ms from Buffalo, US
216.28.239.104 AS52419 CESOP 5.74ms from Buenos Aires, AR
216.28.152.1 AS174 Cogent Communications, LLC 3.97ms from Buffalo, US
216.28.134.1 AS174 Cogent Communications, LLC 0.20ms from Rosario, AR
216.29.165.237 AS29787 Web Force Systems 0.10ms from Columbus, US
216.28.193.254 AS274603 FJ TELECOM LTDA 2.50ms from Joao Pessoa, BR
216.29.96.161 AS29787 Web Force Systems 0.09ms from Columbus, US
216.28.247.127 AS273751 Mnet Telecom 20.89ms from Osasco, BR
216.29.40.65 AS29787 Web Force Systems 0.09ms from Columbus, US
216.28.231.237 AS52419 CESOP 5.84ms from Buenos Aires, AR
216.28.234.63 AS52419 CESOP 5.31ms from Buenos Aires, AR
216.28.8.202 AS29787 Web Force Systems 0.17ms from Columbus, US
216.29.205.42 AS29787 Web Force Systems 0.16ms from Columbus, 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
1.158.202.63 AS1221 Telstra Limited 8.93ms from Adelaide, AU
20.237.28.159 AS8075 Microsoft Corporation 0.50ms from Ashburn, US
24.96.74.95 AS12083 WideOpenWest Finance LLC 12.71ms from Atlanta, US
178.148.155.223 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 6.28ms from Belgrade, RS
50.122.29.63 AS5650 Frontier Communications of America, Inc. 6.18ms from Chicago, US
35.179.195.255 AS16509 Amazon.com, Inc. 0.18ms from London, GB
86.110.55.63 AS42831 UK Dedicated Servers Limited 0.29ms from London, GB
94.9.177.239 AS5607 Sky UK Limited 10.68ms from London, GB
179.148.205.207 AS26599 TELEFÔNICA BRASIL S.A 7.32ms from Osasco, BR
64.173.211.111 AS7018 AT&T Enterprises, LLC 5.89ms from San Jose, US
187.170.246.191 AS8151 UNINET 3.87ms from Santiago de Queretaro, MX
203.24.62.95 AS2764 AAPT Limited 1.24ms from Sydney, AU
89.172.231.127 AS5391 Hrvatski Telekom d.d. 1.85ms from Zagreb, HR
111.164.253.31 AS4837 CHINA UNICOM China169 Backbone 4.92ms from Beijing, CN
79.168.170.47 AS2860 NOS COMUNICACOES, S.A. 6.96ms from Lisbon, PT
86.153.101.239 AS2856 British Telecommunications PLC 2.14ms from London, GB
76.17.238.223 AS7922 Comcast Cable Communications, LLC 7.48ms from Minneapolis, US
182.56.40.111 AS17813 Mahanagar Telephone Nigam Limited 3.50ms from Mumbai, IN
171.109.219.255 AS4134 CHINANET-BACKBONE 3.31ms from Nanning, CN
34.236.163.111 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
94.242.22.31 AS200302 VISP LLC 0.91ms from Saint Petersburg, RU
73.63.31.207 AS7922 Comcast Cable Communications, LLC 7.20ms from Salt Lake City, US
1.231.107.255 AS9318 SK Broadband Co Ltd 1.73ms from Seoul, KR
3.114.237.255 AS16509 Amazon.com, Inc. 0.31ms from Tokyo, JP
54.213.57.255 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m6 216.28.26.185
traceroute to 216.28.26.185 (216.28.26.185): 6 hops max, 52 byte packets
3 [AS174] 154.18.4.192 1.634 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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