66.155.8.0/21

AS13768 · Aptum Technologies

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Summary

Country	United States
Domain	automattic.com
ASN	AS13768
Registry	ARIN
ID	PEER1-AUTOMATTIC-SBA-01

WHOIS Details

NetHandle:      NET-66-155-8-0-1
OrgID:          AUTOM-100
Parent:         NET-66-155-0-0-1
NetName:        PEER1-AUTOMATTIC-SBA-01
NetRange:       66.155.8.0 - 66.155.9.255
NetType:        reassignment
RegDate:        2015-07-13
Updated:        2015-07-13
Source:         ARIN


OrgID:          AUTOM-100
OrgName:        Automattic, Inc
CanAllocate:    
Street:         60 29th Street #343
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94110
RegDate:        2015-07-13
Updated:        2020-01-07
OrgAdminHandle: NOC12276-ARIN
OrgTechHandle:  NOC12276-ARIN
OrgAbuseHandle: ABUSE3970-ARIN
Source:         ARIN


POCHandle:      ABUSE3970-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         60 29th Street #343
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94110
RegDate:        2013-11-01
Updated:        2025-01-01
OfficePhone:    +1-877-273-8550
Mailbox:        abuse@automattic.com
Source:         ARIN


POCHandle:      NOC12276-ARIN
IsRole:         Y
LastName:       NOC
FirstName:      
Street:         60 29th Street #343
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94110
RegDate:        2011-10-04
Updated:        2025-08-27
OfficePhone:    +1-877-273-8550
Mailbox:        ipadmin@automattic.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.155.0.0/16

Range	ASN	Company	Num of IPs
66.155.128.0/17	AS7029	Windstream Communications LLC	32,768
66.155.112.0/20	AS16509	Amazon.com, Inc.	4,096
66.155.76.0/22	AS13768	Cogeco Peer 1	1,024
66.155.80.0/22	AS13768	Cogeco Peer 1	1,024

Hosted domains

There are 100 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.155.11.238	wecinema.info	39
66.155.9.238	ohnurse.org	37
66.155.9.150	underscores.me	24
66.155.9.171	lisagoebel.com	24
66.155.9.186	a8cstatus.com	2
66.155.9.184	postbot.co	2
66.155.9.244	blackamericanweb.com	1
66.155.9.185	calypsostatus.com	1
66.155.13.24	webamg.com	1
66.155.11.244	blackamericanweb.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

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

IP Address	ASN	Details
66.155.14.194	AS13768 Aptum Technologies	`1.10ms` from Ashburn, US
66.155.10.100	AS13768 Aptum Technologies	`0.62ms` from Ashburn, US
66.155.8.9	AS13768 Aptum Technologies	`0.61ms` from Ashburn, US
66.155.9.187	AS13768 Aptum Technologies	`0.59ms` from Ashburn, US
66.155.11.1	AS13768 Aptum Technologies	`1.08ms` from Ashburn, US
66.155.15.16	AS13768 Aptum Technologies	`0.65ms` from Ashburn, 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
24.145.41.5	AS11776 Breezeline	`14.60ms` from Atlanta, US
199.167.218.101	AS26646 TravelCLICK Inc.	`13.34ms` from Atlanta, US
156.215.158.21	AS8452 TE-AS	`5.13ms` from Cairo, EG
177.72.2.69	AS61832 DB3 SERVICOS DE TELECOMUNICACOES S.A	`8.77ms` from Campina Grande, BR
20.90.15.5	AS8075 Microsoft Corporation	`0.18ms` from Cardiff, GB
122.160.118.85	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.40ms` from Delhi, IN
18.197.23.37	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
149.249.127.245	AS29505 Stadtwerke Luebeck Digital GmbH	`1.30ms` from Hamburg, DE
188.49.228.165	AS25019 Saudi Telecom Company JSC	`3.01ms` from Jeddah, SA
13.40.199.213	AS16509 Amazon.com, Inc.	`0.67ms` from London, GB
217.141.195.37	AS3269 Telecom Italia S.p.A.	`4.50ms` from Milan, IT
167.250.28.165	AS265198 BLUE3 TECNOLOGIA EIRELI	`1.06ms` from Novo Hamburgo, BR
153.208.3.101	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.01ms` from Osaka, JP
184.171.7.213	AS3582 University of Oregon	`3.26ms` from Portland, US
67.123.242.53	AS7018 AT&T Enterprises, LLC	`4.82ms` from San Jose, US
188.122.95.85	AS49544 i3D.net B.V	`0.39ms` from Seattle, US
209.210.178.133	AS7385 Allstream Business US, LLC	`14.55ms` from Seattle, US
221.181.115.213	AS24400 Shanghai Mobile Communications Co.,Ltd.	`2.95ms` from Shanghai, CN
94.145.177.69	AS9158 Telenor A/S	`9.31ms` from Skanderborg, DK
86.38.21.85	AS136787 PacketHub S.A.	`0.46ms` from Atlanta, US
183.172.209.181	AS4538 China Education and Research Network Center	`4.72ms` from Beijing, CN
96.46.113.85	AS46238 WT Services, Inc.	`11.84ms` from Greenwood Village, US
58.187.205.165	AS18403 FPT Telecom Company	`0.44ms` from Hanoi, VN
94.199.103.69	AS212757 Gamegami Bilisim A.S.	`0.18ms` from Izmir, TR
24.67.165.69	AS6327 Shaw Communications	`7.91ms` from Kelowna, CA

Traceroute

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

traceroute -a -n -q1 -f4 66.155.15.156

traceroute to 66.155.15.156 (66.155.15.156): 64 hops max, 52 byte packets

4 [AS36236] 104.225.2.188 0.243 ms

5 *

6 *

7 *

8 [] 216.187.115.234 6.833 ms

9 [AS13768] 66.155.15.156 7.705 ms

Measurement taken from

IPinfo ProbeNet in Durham, US

On November 22nd 2025

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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