1. All IP Ranges
  2. 37.0.0.0/8
  3. 37.16.0.0/16
  4. AS40509  | 37.16.20.0/23

37.16.20.0/23

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-37-16-0-0-1
OrgID:          FLYIO
Parent:         NET-37-0-0-0-1
NetName:        FLYIO
NetRange:       37.16.0.0 - 37.16.31.255
NetType:        allocation
RegDate:        2021-12-21
Updated:        2025-10-03
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:      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


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

Nearby Ranges

BGP prefixes that overlap with 37.16.0.0/16

Range ASN Company Num of IPs
37.16.64.0/21 AS12843 TelemaxX Telekommunikation GmbH 2,048
37.16.92.0/22 AS200548 Splash-Pool UG (haftungsbeschraenkt) 1,024
37.16.84.0/24 AS198728 Panasonic Rus Ltd. 256
37.16.92.0/24 AS200548 Splash-Pool UG (haftungsbeschraenkt) 256
37.16.93.0/24 AS200548 Splash-Pool UG (haftungsbeschraenkt) 256
37.16.94.0/24 AS200548 Splash-Pool UG (haftungsbeschraenkt) 256
37.16.95.0/24 AS200548 Splash-Pool UG (haftungsbeschraenkt) 256
37.16.90.0/24 AS201119 SERGEI MURATOV 256
37.16.73.0/24 AS203451 K-telekom LLC 256
37.16.89.0/24 AS205659 TerraTransit AG 256
37.16.72.0/24 AS210863 Velartis GmbH 256
37.16.74.0/24 AS212477 Paldor Networks BV 256
37.16.91.0/24 AS39855 Paldor Networks BV 256
37.16.75.0/24 AS43641 SOLLUTIUM EU Sp z.o.o. 256
37.16.85.0/24 AS58229 PJSC MegaFon 256
37.16.86.0/24 AS198700 LLC M&P Management 256

Hosted domains

There are 103 domain names hosted across 42 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
37.16.20.156 flex-tools.eu 43
37.16.21.139 coeuriosity.de 12
37.16.20.16 uphillapp.com 3
37.16.20.126 passionbird.com 2
37.16.21.211 permakeep.io 2
37.16.20.196 redappl.pro 2
37.16.20.195 locavore.app 2
37.16.21.5 clough.cool 2
37.16.20.180 pressvalue.com 2
37.16.21.190 carbauja.com 2
37.16.21.218 catalogo.digital 1
37.16.20.139 tunnel.agency 1
37.16.20.124 phoneyourrep.org 1
37.16.20.117 superlink.so 1
37.16.20.52 arezer.com 1
37.16.21.123 lettuce.watch 1
37.16.20.198 nusign.co 1
37.16.20.67 portaldoamador.com.br 1
37.16.20.191 mhk.sh 1
37.16.21.221 chatbotcloud.org 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
37.16.21.187 AS40509 Fly.io, Inc. 0.10ms from Osasco, BR
37.16.20.246 AS40509 Fly.io, Inc. 0.09ms 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
209.250.72.135 AS6079 RCN 1.56ms from Ashburn, US
114.117.196.199 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.18ms from Chongqing, CN
186.106.45.199 AS7418 TELEFÓNICA CHILE S.A. 2.46ms from Santiago, CL
135.236.78.87 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
77.230.241.103 AS12430 VODAFONE ESPANA S.A.U. 3.58ms from Barcelona, ES
180.79.251.231 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 9.85ms from Beijing, CN
23.205.233.215 AS16625 Akamai Technologies, Inc. 0.35ms from Buenos Aires, AR
24.144.1.87 AS12231 Conway Corporation 9.27ms from Dallas, US
87.164.136.199 AS3320 Deutsche Telekom AG 7.30ms from Frankfurt am Main, DE
217.94.173.167 AS3320 Deutsche Telekom AG 7.77ms from Frankfurt am Main, DE
82.7.157.55 AS5089 Virgin Media Limited 9.37ms from London, GB
173.195.11.7 AS22781 Strong Technology, LLC. 0.57ms from San Jose, US
186.223.250.7 AS28573 Claro NXT Telecomunicacoes Ltda 10.11ms from Sao Paulo, BR
75.253.34.199 AS6167 Verizon Business 8.25ms from Seattle, US
123.161.163.119 AS4134 CHINANET-BACKBONE 5.89ms from Zhengzhou, CN
117.243.239.7 AS9829 National Internet Backbone 13.58ms from Bengaluru, IN
190.251.39.151 AS13489 UNE EPM TELECOMUNICACIONES S.A. 13.81ms from Bogota, CO
141.12.26.167 AS28714 Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. 1.04ms from Frankfurt am Main, DE
84.150.16.71 AS3320 Deutsche Telekom AG 8.64ms from Frankfurt am Main, DE
59.58.15.39 AS4134 CHINANET-BACKBONE 4.73ms from Fuzhou, CN
197.211.238.135 AS37332 Zimbabwe Online 1.49ms from Harare, ZW
113.161.54.183 AS45899 VNPT Corp 1.23ms from Ho Chi Minh City, VN
13.120.88.55 AS36351 IBM Cloud 0.60ms from Madrid, ES
136.158.96.71 AS17639 Converge ICT Solutions Inc. 11.60ms from Manila, PH
37.192.81.71 AS31200 Novotelecom Ltd 2.22ms from Novosibirsk, RU

Traceroute

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

$
traceroute -a -n -q1 -f3 37.16.20.99
traceroute to 37.16.20.99 (37.16.20.99): 64 hops max, 52 byte packets
4 [AS40509] 37.16.20.99 0.156 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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