1. All IP Ranges
  2. 137.0.0.0/8
  3. 137.66.0.0/16
  4. AS40509  | 137.66.56.0/23

137.66.56.0/23

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:         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 163 domain names hosted across 28 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
137.66.57.187 cognativconsulting.com 98
137.66.56.143 sphynxlinks.io 17
137.66.57.242 elviswantsawalk.com 16
137.66.57.38 yellowflag.co.uk 5
137.66.57.148 austinbmiles.com 2
137.66.56.110 me-page.site 2
137.66.56.117 favvopasar.se 2
137.66.57.163 pawstit.com 2
137.66.57.13 blastershot.net 1
137.66.56.103 airtape.co 1
137.66.57.66 xn--kda.fo 1
137.66.56.114 thecs.co 1
137.66.57.143 koefx.com 1
137.66.57.23 fotografiaderua.com.br 1
137.66.56.126 unxpected.co.jp 1
137.66.56.145 nanhu.ca 1
137.66.56.151 carparkwhere.com 1
137.66.56.121 nola.paris 1
137.66.56.219 thefabsociete.com 1
137.66.56.253 online-eori.ro 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
137.66.57.33 AS40509 Fly.io, Inc. 0.10ms from Mumbai, IN
137.66.56.43 AS40509 Fly.io, Inc. 0.10ms from Mumbai, IN

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
41.65.166.135 AS36992 ETISALAT MISR 7.53ms from Cairo, EG
75.198.42.247 AS6167 Verizon Business 14.79ms from Chicago, US
78.48.77.39 AS6805 Telefonica Germany GmbH & Co.OHG 3.93ms from Duesseldorf, DE
125.107.132.183 AS4134 CHINANET-BACKBONE 8.14ms from Hangzhou, CN
82.128.226.151 AS16086 DNA Oyj 3.19ms from Helsinki, FI
210.102.227.183 AS46012 Induk University 1.76ms from Incheon, KR
151.41.45.215 AS1267 WIND TRE S.P.A. 8.50ms from Milan, IT
179.98.133.87 AS27699 TELEFÔNICA BRASIL S.A 4.47ms from Sao Paulo, BR
139.194.83.71 AS23700 Linknet-Fastnet ASN 13.46ms from Singapore, SG
116.88.172.71 AS55430 Starhub Ltd 2.79ms from Singapore, SG
34.118.194.71 AS396982 Google LLC 0.16ms from The Dalles, US
124.41.64.183 AS2497 Internet Initiative Japan Inc. 3.96ms from Tokyo, JP
98.97.16.71 AS14593 Space Exploration Technologies Corporation 13.02ms from Ashburn, US
52.26.113.231 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
191.92.198.71 AS27831 Colombia Móvil 14.46ms from Bogota, CO
112.18.80.7 AS9808 China Mobile Communications Group Co., Ltd. 10.71ms from Chengdu, CN
3.22.175.87 AS16509 Amazon.com, Inc. 0.71ms from Columbus, US
20.82.234.151 AS8075 Microsoft Corporation 0.15ms from Dublin, IE
149.52.20.151 AS55201 SkyQuantum Internet Service 0.29ms from Fremont, US
24.201.243.199 AS5769 Videotron Ltee 0.93ms from Montreal, CA
211.6.48.247 AS4713 NTT DOCOMO BUSINESS,Inc. 5.30ms from Osaka, JP
20.74.56.7 AS8075 Microsoft Corporation 0.28ms from Paris, FR
61.156.213.7 AS4837 CHINA UNICOM China169 Backbone 4.66ms from Qingdao, CN
175.149.236.247 AS4837 CHINA UNICOM China169 Backbone 7.00ms from Tieling, CN
175.146.223.183 AS4837 CHINA UNICOM China169 Backbone 5.85ms from Tieling, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 137.66.57.5
traceroute to 137.66.57.5 (137.66.57.5): 64 hops max, 52 byte packets
4 [AS40509] 137.66.57.5 0.152 ms
Measurement taken from IPinfo ProbeNet in Sydney, AU
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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