137.66.42.0/23

AS40509 · Fly.io, Inc.

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Summary

Country	United States
Domain	fly.io
ASN	AS40509
Registry	ARIN
ID	FLYIO

WHOIS Details

NetHandle:      NET-137-66-0-0-1
OrgID:          FLYIO
Parent:         NET-137-0-0-0-0
NetName:        FLYIO
NetRange:       137.66.0.0 - 137.66.63.255
NetType:        allocation
RegDate:        2022-04-29
Updated:        2022-04-29
Source:         ARIN


OrgID:          FLYIO
OrgName:        Fly.io, Inc.
CanAllocate:    
Street:         PO Box 803338 #19104
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60680-3338
RegDate:        2017-01-18
Updated:        2025-01-10
OrgAdminHandle: FLYOP-ARIN
OrgTechHandle:  BERRY359-ARIN
OrgTechHandle:  FLYOP-ARIN
OrgAbuseHandle: ABUSE8489-ARIN
OrgNOCHandle:   FLYOP-ARIN
Source:         ARIN


POCHandle:      FLYOP-ARIN
IsRole:         Y
LastName:       Fly Ops
FirstName:      
Street:         PO Box 803338 #19104
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60680-3338
RegDate:        2017-01-15
Updated:        2024-11-07
OfficePhone:    +1-312-283-4377
Mailbox:        ops@fly.io
Source:         ARIN


POCHandle:      BERRY359-ARIN
IsRole:         N
LastName:       Berryman
FirstName:      Steve
Street:         630 Davidson Road
City:           Croydon
State/Prov:     
Country:        GB
PostalCode:     CR0 6DJ
RegDate:        2021-11-11
Updated:        2025-01-10
OfficePhone:    +447886749129
Mailbox:        steve@fly.io
Source:         ARIN


POCHandle:      ABUSE8489-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         2261 Market Street #4990
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94114
RegDate:        2022-07-20
Updated:        2025-08-06
OfficePhone:    +1-312-626-4490
Mailbox:        abuse@fly.io
Source:         ARIN

Hosted domains

There are 27 domain names hosted across 21 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
137.66.43.163	endash.dev	3
137.66.42.101	uhome.ga	2
137.66.42.166	njausteve.com	2
137.66.42.33	miradaalcongreso.com	2
137.66.42.181	dfaulring.com	2
137.66.43.175	sajuni.dk	1
137.66.42.85	aerocode.dev	1
137.66.42.200	c9online.org	1
137.66.43.224	depozitron.com	1
137.66.43.239	ready4u.co.za	1
137.66.43.171	qrworkflow.pro	1
137.66.43.4	eoceanweb.com	1
137.66.42.35	codeconstants.com	1
137.66.43.138	lippardfamily.com	1
137.66.42.98	t-r.me	1
137.66.43.108	podd.online	1
137.66.42.36	teleprompt.cloud	1
137.66.43.202	docurapide.net	1
137.66.42.119	whatthecars.com	1
137.66.43.174	oldwomanjosiah.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

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

IP Address	ASN	Details
137.66.43.221	AS40509 Fly.io, Inc.	`0.09ms` from Johannesburg, ZA
137.66.42.242	AS40509 Fly.io, Inc.	`0.09ms` from Rio de Janeiro, BR

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
83.118.49.23	AS132280 Symphony Communication (Thailand) PCL.	`0.91ms` from Bangkok, TH
73.68.5.247	AS7922 Comcast Cable Communications, LLC	`6.71ms` from Boston, US
49.191.92.231	AS4804 Microplex PTY LTD	`1.32ms` from Brisbane, AU
104.57.112.55	AS7018 AT&T Enterprises, LLC	`12.02ms` from Chicago, US
60.20.238.135	AS4837 CHINA UNICOM China169 Backbone	`9.78ms` from Liaoyang, CN
68.109.197.199	AS22773 Cox Communications Inc.	`5.82ms` from Los Angeles, US
185.214.137.7	AS202766 LYNTIA NETWORKS S.A.	`10.04ms` from Madrid, ES
17.253.201.7	AS714 Apple Inc.	`0.10ms` from Melbourne, AU
52.147.61.103	AS8075 Microsoft Corporation	`0.56ms` from Melbourne, AU
180.12.154.7	AS4713 NTT Communications Corporation	`6.13ms` from Osaka, JP
35.170.4.39	AS14618 Amazon.com, Inc.	`0.16ms` from Reston, US
124.57.17.55	AS17858 LG POWERCOMM	`3.38ms` from Seoul, KR
124.51.186.7	AS17858 LG POWERCOMM	`7.51ms` from Seoul, KR
125.181.120.7	AS17858 LG POWERCOMM	`5.88ms` from Seoul, KR
1.97.119.71	AS4766 Korea Telecom	`1.24ms` from Seoul, KR
58.19.121.55	AS4837 CHINA UNICOM China169 Backbone	`1.67ms` from Wuhan, CN
109.187.11.151	AS28812 PJSC "Bashinformsvyaz"	`9.09ms` from Yekaterinburg, RU
39.57.186.151	AS17557 Pakistan Telecommunication Company Limited	`2.32ms` from Karachi, PK
120.28.132.23	AS132199 Globe Telecom Inc.	`2.59ms` from Manila, PH
87.15.171.135	AS3269 Telecom Italia S.p.A.	`3.96ms` from Milan, IT
153.135.208.87	AS4713 NTT Communications Corporation	`11.29ms` from Osaka, JP
200.133.254.231	AS1916 Rede Nacional de Ensino e Pesquisa	`0.23ms` from Osasco, BR
35.155.133.55	AS16509 Amazon.com, Inc.	`4.62ms` from Portland, US
211.178.26.103	AS9318 SK Broadband Co Ltd	`0.84ms` from Seoul, KR
71.69.196.247	AS11426 Charter Communications Inc	`8.86ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f2 137.66.42.13

traceroute to 137.66.42.13 (137.66.42.13): 64 hops max, 52 byte packets

2 [AS7195] 200.25.52.193 298.837 ms

3 [AS40509] 137.66.42.13 0.109 ms

Measurement taken from

IPinfo ProbeNet in Rio de Janeiro, BR

On August 28th 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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