1. All IP Ranges
  2. 37.0.0.0/8
  3. 37.16.0.0/16
  4. AS40509  | 37.16.4.0/23

37.16.4.0/23

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:      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


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

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 365 domain names hosted across 39 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
37.16.4.73 natureglamping.net 263
37.16.4.30 hfytales.com 31
37.16.5.126 sarahsaundersforschoolboard.com 25
37.16.4.130 xn--2s2b17g1qe4ut.net 4
37.16.5.93 bdayly.ch 4
37.16.4.245 artistsrightscouncil.com 3
37.16.4.123 buildserver.world 2
37.16.5.72 makaidefense.net 2
37.16.4.102 canwesettle.com 1
37.16.4.98 joinme.sh 1
37.16.4.28 programmermumet.com 1
37.16.5.161 playguessit.com 1
37.16.5.182 radicaltelehealthcollective.org 1
37.16.4.159 power-engine.eu 1
37.16.5.195 aggr.meme 1
37.16.5.127 sl3.me 1
37.16.5.78 steamdecktips.com 1
37.16.5.30 goatvote.app 1
37.16.4.244 vskool.dev 1
37.16.5.98 audiopress.space 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
37.16.4.128 AS40509 Fly.io, Inc. 0.10ms from Osasco, BR
37.16.5.221 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
24.9.14.23 AS7922 Comcast Cable Communications, LLC 7.40ms from Denver, US
18.158.7.247 AS16509 Amazon.com, Inc. 0.19ms from Frankfurt am Main, DE
89.246.205.55 AS8881 1&1 Versatel GmbH 2.69ms from Hamburg, DE
42.113.109.71 AS18403 FPT Telecom Company 1.27ms from Ho Chi Minh City, VN
125.181.10.39 AS17858 LG POWERCOMM 3.15ms from Incheon, KR
122.163.93.87 AS24560 Bharti Airtel Ltd., Telemedia Services 1.59ms from Kolkata, IN
5.66.137.87 AS5607 Sky UK Limited 3.54ms from London, GB
180.198.6.71 AS18126 Chubu Telecommunications Company, Inc. 6.63ms from Osaka, JP
153.224.244.39 AS4713 NTT DOCOMO BUSINESS,Inc. 8.34ms from Osaka, JP
188.131.174.247 AS45090 Shenzhen Tencent Computer Systems Company Limited 5.08ms from Beijing, CN
97.157.146.135 AS6167 Verizon Business 13.27ms from Chicago, US
172.214.237.87 AS8075 Microsoft Corporation 0.19ms from Chicago, US
64.7.218.231 AS32475 Internap Holding LLC 1.39ms from Dallas, US
171.249.55.135 AS7552 Viettel Group 2.10ms from Ho Chi Minh City, VN
107.140.76.7 AS7018 AT&T Enterprises, LLC 2.18ms from Kansas City, US
37.15.142.231 AS12479 Orange Espagne SA 7.20ms from Madrid, ES
178.49.81.167 AS31200 Novotelecom Ltd 1.70ms from Novosibirsk, RU
179.98.165.183 AS27699 TELEFÔNICA BRASIL S.A 2.56ms from Osasco, BR
187.0.223.135 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.73ms from Rio de Janeiro, BR
175.121.54.135 AS9318 SK Broadband Co Ltd 5.23ms from Seoul, KR
121.124.105.135 AS9318 SK Broadband Co Ltd 1.46ms from Seoul, KR
222.150.172.231 AS4713 NTT DOCOMO BUSINESS,Inc. 8.83ms from Tokyo, JP
187.109.171.23 AS263579 ISUPER TELECOMUNICACOES INFO LTDA 7.78ms from Curitiba, BR
75.217.55.23 AS6167 Verizon Business 17.18ms from Dallas, US
122.169.237.7 AS24560 Bharti Airtel Ltd., Telemedia Services 1.86ms from Hyderabad, IN

Traceroute

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

$
traceroute -a -n -q1 -f3 37.16.4.189
traceroute to 37.16.4.189 (37.16.4.189): 64 hops max, 52 byte packets
4 [AS40509] 37.16.4.189 0.162 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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