137.66.42.0/23

AS40509 · Fly.io, Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

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:         2261 Market Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94114
RegDate:        2017-01-18
Updated:        2025-11-18
OrgAdminHandle: FLYOP-ARIN
OrgTechHandle:  BERRY359-ARIN
OrgTechHandle:  FLYOP-ARIN
OrgAbuseHandle: ABUSE8489-ARIN
OrgNOCHandle:   FLYOP-ARIN
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


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:      FLYOP-ARIN
IsRole:         Y
LastName:       Fly Ops
FirstName:      
Street:         2261 Market Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94114
RegDate:        2017-01-15
Updated:        2025-11-18
OfficePhone:    +1-312-283-4377
Mailbox:        ops@fly.io
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 137.66.0.0/16

No nearby ranges found.

Hosted domains

There are 51 domain names hosted across 22 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
137.66.42.63	legalnewsarchive.com	25
137.66.43.163	endash.co	3
137.66.42.181	dfaulring.dev	2
137.66.42.101	uhome.tk	2
137.66.42.166	njausteve.com	2
137.66.43.174	oldwomanjosiah.com	1
137.66.42.240	pollstack.cloud	1
137.66.42.88	bkt.sh	1
137.66.43.171	qrworkflow.pro	1
137.66.42.200	c9online.org	1
137.66.42.199	repogo.dev	1
137.66.43.202	docurapide.net	1
137.66.43.239	ready4u.co.za	1
137.66.43.224	depozitron.com	1
137.66.42.33	miradaalcongreso.ga	1
137.66.43.138	lippardfamily.com	1
137.66.43.4	eoceanweb.com	1
137.66.42.85	aerocode.dev	1
137.66.42.119	whatthecars.com	1
137.66.42.179	influalpha.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
137.66.43.49	AS40509 Fly.io, Inc.	`0.10ms` from Osasco, BR
137.66.42.16	AS40509 Fly.io, Inc.	`0.10ms` from Osasco, 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
73.171.122.87	AS7922 Comcast Cable Communications, LLC	`6.35ms` from Ashburn, US
78.21.100.39	AS6848 Telenet BV	`6.64ms` from Brussels, BE
219.91.197.231	AS18207 YOU Broadband & Cable India Ltd.	`1.63ms` from Chennai, IN
47.136.10.135	AS5650 Frontier Communications of America, Inc.	`5.91ms` from Los Angeles, US
185.214.137.7	AS41368 Spotting Brands Technologies S.L.	`10.37ms` from Madrid, ES
60.145.74.119	AS17676 SoftBank Corp.	`3.84ms` from Osaka, JP
182.155.52.39	AS17809 VEE TIME CORP.	`3.19ms` from Taipei, TW
3.173.255.87	AS16509 Amazon.com, Inc.	`1.01ms` from Tokyo, JP
73.153.160.7	AS7922 Comcast Cable Communications, LLC	`2.33ms` from Denver, US
79.255.128.231	AS3320 Deutsche Telekom AG	`5.86ms` from Frankfurt am Main, DE
113.3.88.199	AS4837 CHINA UNICOM China169 Backbone	`8.10ms` from Harbin, CN
58.233.180.247	AS9318 SK Broadband Co Ltd	`1.38ms` from Incheon, KR
117.245.133.103	AS9829 National Internet Backbone	`5.94ms` from Kolkata, IN
46.200.60.247	AS6849 JSC "Ukrtelecom"	`5.64ms` from Kyiv, UA
216.73.124.215	AS394972 Valley Electric Association	`4.36ms` from Las Vegas, US
112.210.132.199	AS9299 Philippine Long Distance Telephone Company	`2.15ms` from Manila, PH
75.229.22.167	AS6167 Verizon Business	`18.00ms` from Miami, US
96.239.112.231	AS701 Verizon Business	`2.48ms` from New York City, US
62.35.209.87	AS5410 Bouygues Telecom SA	`11.88ms` from Paris, FR
180.224.217.247	AS17858 LG POWERCOMM	`1.32ms` from Seoul, KR
70.26.139.103	AS577 Bell Canada	`2.91ms` from Toronto, CA
89.70.97.167	AS9141 P4 Sp. z o.o.	`12.08ms` from Warsaw, PL
102.41.84.231	AS8452 TE-AS	`4.18ms` from Cairo, EG
23.36.232.87	AS16625 Akamai Technologies, Inc.	`0.28ms` from Frankfurt am Main, DE
90.19.234.215	AS3215 Orange S.A.	`4.22ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f2 137.66.42.64

traceroute to 137.66.42.64 (137.66.42.64): 64 hops max, 52 byte packets

2 [AS7195] 200.25.56.11 0.796 ms

3 [AS40509] 137.66.42.64 0.126 ms

Measurement taken from

IPinfo ProbeNet in Osasco, BR

On March 20th 2026

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales