Autonomous System details

AS40509

Fly.io, Inc. · fly.io

United States

Anycast

CDN

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AS40509 – Fly.io, Inc.

Field	Value
Country	United States
Website	fly.io
Hosted domains	114,563
IPv4 addresses	72,448
IPv6 addresses	82,206,955,733,794,783,880,019,968
ASN type	Hosting
Registry	arin
Allocated	8 years ago on Dec 20, 2017
Updated	8 years ago on Dec 20, 2017

Netblock	Company	Num of IPs
77.83.140.0/22	Fly.io, Inc	1,024
37.16.0.0/23	Fly.io, Inc.	512
37.16.2.0/23	Fly.io, Inc.	512
37.16.4.0/23	Fly.io, Inc.	512
37.16.6.0/23	Fly.io, Inc.	512
37.16.8.0/23	Fly.io, Inc.	512
37.16.10.0/23	Fly.io, Inc.	512
37.16.12.0/23	Fly.io, Inc.	512
37.16.14.0/23	Fly.io, Inc.	512
37.16.16.0/23	Fly.io, Inc.	512
37.16.18.0/23	Fly.io, Inc.	512
37.16.20.0/23	Fly.io, Inc.	512
37.16.22.0/23	Fly.io, Inc.	512
37.16.24.0/23	Fly.io, Inc.	512
37.16.26.0/23	Fly.io, Inc.	512
37.16.28.0/23	Fly.io, Inc.	512
37.16.30.0/23	Fly.io, Inc.	512
66.51.120.0/23	Fly.io, Inc.	512
66.51.122.0/23	Fly.io, Inc.	512
66.51.124.0/23	Fly.io, Inc.	512
66.51.126.0/23	Fly.io, Inc.	512
66.241.124.0/23	Fly.io, Inc.	512
109.105.216.0/23	Fly.io, Inc.	512
109.105.218.0/23	Fly.io, Inc.	512
109.105.220.0/23	Fly.io, Inc.	512
109.105.222.0/23	Fly.io, Inc.	512
137.66.0.0/23	Fly.io, Inc.	512
137.66.2.0/23	Fly.io, Inc.	512
137.66.4.0/23	Fly.io, Inc.	512
137.66.6.0/23	Fly.io, Inc.	512
137.66.8.0/23	Fly.io, Inc.	512
137.66.10.0/23	Fly.io, Inc.	512
137.66.12.0/23	Fly.io, Inc.	512
137.66.14.0/23	Fly.io, Inc.	512
137.66.16.0/23	Fly.io, Inc.	512
137.66.18.0/23	Fly.io, Inc.	512
137.66.20.0/23	Fly.io, Inc.	512
137.66.22.0/23	Fly.io, Inc.	512
137.66.24.0/23	Fly.io, Inc.	512
137.66.26.0/23	Fly.io, Inc.	512
137.66.28.0/23	Fly.io, Inc.	512
137.66.30.0/23	Fly.io, Inc.	512
137.66.32.0/23	Fly.io, Inc.	512
137.66.34.0/23	Fly.io, Inc.	512
137.66.36.0/23	Fly.io, Inc.	512
137.66.38.0/23	Fly.io, Inc.	512
137.66.42.0/23	Fly.io, Inc.	512
137.66.44.0/23	Fly.io, Inc.	512
137.66.46.0/23	Fly.io, Inc.	512
137.66.48.0/23	Fly.io, Inc.	512
137.66.50.0/23	Fly.io, Inc.	512
137.66.52.0/23	Fly.io, Inc.	512
137.66.54.0/23	Fly.io, Inc.	512
137.66.56.0/23	Fly.io, Inc.	512
137.66.58.0/23	Fly.io, Inc.	512
137.66.60.0/23	Fly.io, Inc.	512
137.66.62.0/23	Fly.io, Inc.	512
149.248.192.0/23	Fly.io, Inc.	512
149.248.194.0/23	Fly.io, Inc.	512
149.248.196.0/23	Fly.io, Inc.	512
149.248.198.0/23	Fly.io, Inc.	512
149.248.200.0/23	Fly.io, Inc.	512
149.248.202.0/23	Fly.io, Inc.	512
149.248.204.0/23	Fly.io, Inc.	512
149.248.206.0/23	Fly.io, Inc.	512
149.248.208.0/23	Fly.io, Inc.	512
149.248.210.0/23	Fly.io, Inc.	512
149.248.212.0/23	Fly.io, Inc.	512
149.248.214.0/23	Fly.io, Inc.	512
149.248.216.0/23	Fly.io, Inc.	512
149.248.218.0/23	Fly.io, Inc.	512
149.248.220.0/23	Fly.io, Inc.	512
149.248.222.0/23	Fly.io, Inc.	512
168.220.80.0/23	Fly.io, Inc.	512
168.220.82.0/23	Fly.io, Inc.	512
168.220.84.0/23	Fly.io, Inc.	512
168.220.86.0/23	Fly.io, Inc.	512
168.220.88.0/23	Fly.io, Inc.	512
168.220.90.0/23	Fly.io, Inc.	512
168.220.92.0/23	Fly.io, Inc.	512
168.220.94.0/23	Fly.io, Inc.	512
169.155.48.0/23	Fly.io, Inc.	512
169.155.50.0/23	Fly.io, Inc.	512
169.155.52.0/23	Fly.io, Inc.	512
169.155.54.0/23	Fly.io, Inc.	512
169.155.56.0/23	Fly.io, Inc.	512
169.155.58.0/23	Fly.io, Inc.	512
169.155.60.0/23	Fly.io, Inc.	512
169.155.62.0/23	Fly.io, Inc.	512
188.93.144.0/23	Fly.io, Inc.	512
188.93.146.0/23	Fly.io, Inc.	512
188.93.148.0/23	Fly.io, Inc.	512
188.93.150.0/23	Fly.io, Inc.	512
204.10.76.0/23	Fly.io, Inc.	512
204.10.78.0/23	Fly.io, Inc.	512
213.188.194.0/23	Fly.io, Inc	512
213.188.196.0/23	Fly.io, Inc	512
213.188.198.0/23	Fly.io, Inc	512
213.188.208.0/23	Fly.io, Inc	512
213.188.210.0/23	Fly.io, Inc	512
213.188.212.0/23	Fly.io, Inc	512
213.188.214.0/23	Fly.io, Inc	512
213.188.216.0/23	Fly.io, Inc	512
213.188.218.0/23	Fly.io, Inc	512
213.188.220.0/23	Fly.io, Inc	512
213.188.222.0/23	Fly.io, Inc	512
50.31.246.0/24	Fly.io, Inc.	256
66.241.112.0/24	Fly.io, Inc.	256
66.241.113.0/24	Fly.io, Inc.	256
66.241.114.0/24	Fly.io, Inc.	256
66.241.115.0/24	Fly.io, Inc.	256
66.241.127.0/24	Fly.io, Inc.	256
137.66.40.0/24	Fly.io, Inc.	256
172.86.145.0/24	Fly.io, Inc.	256
172.86.146.0/24	Fly.io, Inc.	256
172.86.147.0/24	Fly.io, Inc.	256
172.86.148.0/24	Fly.io, Inc.	256
172.86.149.0/24	Fly.io, Inc.	256
172.86.150.0/24	Fly.io, Inc.	256
172.86.151.0/24	Fly.io, Inc.	256
204.8.216.0/24	Fly.io, Inc.	256
204.8.217.0/24	Fly.io, Inc.	256
204.8.218.0/24	Fly.io, Inc.	256
204.8.219.0/24	Fly.io, Inc.	256
204.8.220.0/24	Fly.io, Inc.	256
204.8.221.0/24	Fly.io, Inc.	256
204.8.222.0/24	Fly.io, Inc.	256
206.51.242.0/24	Fly.io, Inc.	256
209.71.64.0/24	Fly.io, Inc.	256
209.71.65.0/24	Fly.io, Inc.	256
209.71.66.0/24	Fly.io, Inc.	256
209.71.67.0/24	Fly.io, Inc.	256
209.71.68.0/24	Fly.io, Inc.	256
209.71.69.0/24	Fly.io, Inc.	256
209.71.70.0/24	Fly.io, Inc.	256
209.71.71.0/24	Fly.io, Inc.	256
209.71.72.0/24	Fly.io, Inc.	256
209.71.73.0/24	Fly.io, Inc.	256
209.71.74.0/24	Fly.io, Inc.	256
209.71.75.0/24	Fly.io, Inc.	256
209.71.76.0/24	Fly.io, Inc.	256
209.71.77.0/24	Fly.io, Inc.	256
209.71.78.0/24	Fly.io, Inc.	256
209.71.80.0/24	Fly.io, Inc.	256
209.71.81.0/24	Fly.io, Inc.	256
209.71.82.0/24	Fly.io, Inc.	256
209.71.83.0/24	Fly.io, Inc.	256
209.71.84.0/24	Fly.io, Inc.	256
209.71.85.0/24	Fly.io, Inc.	256
209.71.86.0/24	Fly.io, Inc.	256
209.71.87.0/24	Fly.io, Inc.	256
209.71.88.0/24	Fly.io, Inc.	256
209.71.89.0/24	Fly.io, Inc.	256
209.71.90.0/24	Fly.io, Inc.	256
209.71.91.0/24	Fly.io, Inc.	256
209.71.92.0/24	Fly.io, Inc.	256
209.71.94.0/24	Fly.io, Inc.	256
209.71.95.0/24	Fly.io, Inc.	256
209.71.96.0/24	Fly.io, Inc.	256
209.71.97.0/24	Fly.io, Inc.	256
209.71.98.0/24	Fly.io, Inc.	256
209.71.99.0/24	Fly.io, Inc.	256
209.71.100.0/24	Fly.io, Inc.	256
209.71.101.0/24	Fly.io, Inc.	256
209.71.102.0/24	Fly.io, Inc.	256
213.188.192.0/24	Fly.io, Inc	256
213.188.193.0/24	Fly.io, Inc	256
213.188.200.0/24	Fly.io, Inc	256
213.188.201.0/24	Fly.io, Inc	256
213.188.202.0/24	Fly.io, Inc	256
213.188.203.0/24	Fly.io, Inc	256
213.188.204.0/24	Fly.io, Inc	256
213.188.205.0/24	Fly.io, Inc	256
213.188.206.0/24	Fly.io, Inc	256
213.188.207.0/24	Fly.io, Inc	256

Netblock	Company
2a09:8280:1::/48	Fly.io, Inc
2a09:8280:13::/48	Fly.io, Inc
2a09:8280:16::/48	Fly.io, Inc
2a09:8280:50::/48	Fly.io, Inc
2a09:8280:51::/48	Fly.io, Inc
2a09:8280:53::/48	Fly.io, Inc
2a09:8280:54::/48	Fly.io, Inc
2a09:8280:56::/48	Fly.io, Inc
2a09:8280:57::/48	Fly.io, Inc
2a09:8280:58::/48	Fly.io, Inc
2a09:8280:59::/48	Fly.io, Inc
2a09:8280:5a::/48	Fly.io, Inc
2a09:8280:5b::/48	Fly.io, Inc
2a09:8280:5d::/48	Fly.io, Inc
2a09:8280:5f::/48	Fly.io, Inc
2a09:8280:60::/48	Fly.io, Inc
2a09:8280:61::/48	Fly.io, Inc
2a09:8280:62::/48	Fly.io, Inc
2a09:8280:63::/48	Fly.io, Inc
2a09:8280:64::/48	Fly.io, Inc
2a09:8280:65::/48	Fly.io, Inc
2a09:8280:66::/48	Fly.io, Inc
2a09:8280:67::/48	Fly.io, Inc
2a09:8280:68::/48	Fly.io, Inc
2a09:8280:69::/48	Fly.io, Inc
2a09:8280:70::/48	Fly.io, Inc
2a09:8280:71::/48	Fly.io, Inc
2a09:8280:72::/48	Fly.io, Inc
2a09:8280:73::/48	Fly.io, Inc
2a09:8280:74::/48	Fly.io, Inc
2a09:8280:75::/48	Fly.io, Inc
2a09:8280:76::/48	Fly.io, Inc
2a09:8280:200::/48	Fly.io, Inc
2a09:8280:e601::/48	Fly.io, Inc
2a09:8280:e602::/48	Fly.io, Inc
2a09:8280:e603::/48	Fly.io, Inc
2a09:8280:e604::/48	Fly.io, Inc
2a09:8280:e605::/48	Fly.io, Inc
2a09:8280:e606::/48	Fly.io, Inc
2a09:8280:e607::/48	Fly.io, Inc
2a09:8280:e608::/48	Fly.io, Inc
2a09:8280:e609::/48	Fly.io, Inc
2a09:8280:e610::/48	Fly.io, Inc
2a09:8280:e611::/48	Fly.io, Inc
2a09:8280:e612::/48	Fly.io, Inc
2a09:8280:e613::/48	Fly.io, Inc
2a09:8280:e614::/48	Fly.io, Inc
2a09:8280:e615::/48	Fly.io, Inc
2a09:8280:e617::/48	Fly.io, Inc
2a09:8280:e618::/48	Fly.io, Inc
2a09:8280:e620::/48	Fly.io, Inc
2a09:8280:e621::/48	Fly.io, Inc
2a09:8280:e622::/48	Fly.io, Inc
2a09:8280:e623::/48	Fly.io, Inc
2a09:8280:e624::/48	Fly.io, Inc
2a09:8280:e625::/48	Fly.io, Inc
2a09:8280:e626::/48	Fly.io, Inc
2a09:8280:e627::/48	Fly.io, Inc
2a09:8280:e628::/48	Fly.io, Inc
2a09:8280:e629::/48	Fly.io, Inc
2a09:8280:e630::/48	Fly.io, Inc
2a09:8280:e631::/48	Fly.io, Inc
2a09:8280:e632::/48	Fly.io, Inc
2a09:8280:e633::/48	Fly.io, Inc
2a09:8280:e634::/48	Fly.io, Inc
2a09:8280:e635::/48	Fly.io, Inc
2a09:8280:e636::/48	Fly.io, Inc
2a09:8280:e637::/48	Fly.io, Inc

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WHOIS Details

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                                                ASHandle:       AS40509
                                                OrgID:          AS40509
                                                ASName:         AS40509
                                                ASNumber:       AS40509
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 114,563 domain names hosted across 3,701 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
66.51.123.227	█████████	15,339
77.83.142.181	██████████	12,962
213.188.192.2	██████████	10,865
77.83.141.16	██████████	2,738
37.16.0.21	██████████	2,659
37.16.11.30	██████████	2,488
149.248.215.28	██████████	2,455
149.248.221.164	██████████	1,869
213.188.193.176	██████████	1,582
109.105.219.109	██████████	1,526

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Peers

There are 2 peers for this ASN.

Peers	Name
AS30081	CacheFly
AS36236	NetActuate, Inc

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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS30081	CacheFly
AS36236	NetActuate, Inc

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
172.86.145.183	AS40509 Fly.io, Inc.	`0.88ms` from Chicago, US
213.188.204.203	AS40509 Fly.io, Inc.	`0.29ms` from London, GB
213.188.211.78	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
213.188.210.234	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
37.16.15.172	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
168.220.89.5	AS40509 Fly.io, Inc.	`0.11ms` from Mumbai, IN
149.248.204.17	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
168.220.91.80	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
2a09:8280:75::1	AS40509 Fly.io, Inc.	`0.60ms` from New York City, US
137.66.30.29	AS40509 Fly.io, Inc.	`0.10ms` from Johannesburg, ZA
37.16.18.180	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
213.188.194.140	AS40509 Fly.io, Inc.	`0.11ms` from Mumbai, IN
204.10.76.178	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
188.93.144.250	AS40509 Fly.io, Inc.	`0.11ms` from Mumbai, IN
137.66.55.153	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
66.51.120.145	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
37.16.14.81	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
168.220.92.138	AS40509 Fly.io, Inc.	`0.10ms` from Mumbai, IN
2a09:8280:61:4aa5:1185:a1de:6cf3:7ab9	AS40509 Fly.io, Inc.	`0.24ms` from Tokyo, JP
172.86.148.192	AS40509 Fly.io, Inc.	`0.24ms` from Amsterdam, NL
2a09:8280:59:dbf4:83e3:ed73:cae9:60d0	AS40509 Fly.io, Inc.	`0.42ms` from Ashburn, US
66.241.114.210	AS40509 Fly.io, Inc.	`0.11ms` from Johannesburg, ZA
213.188.207.123	AS40509 Fly.io, Inc.	`0.11ms` from Mumbai, IN
37.16.10.133	AS40509 Fly.io, Inc.	`0.11ms` from Mumbai, IN
37.16.1.12	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
2.20.177.45	AS20940 Akamai International B.V.	`0.47ms` from Amsterdam, NL
44.231.55.109	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
223.87.194.45	AS9808 China Mobile Communications Group Co., Ltd.	`2.63ms` from Chengdu, CN
3.15.178.253	AS16509 Amazon.com, Inc.	`0.96ms` from Columbus, US
212.129.64.189	AS15751 Eircom Limited	`0.83ms` from Dublin, IE
168.76.68.77	AS137951 ASLINE LIMITED	`0.81ms` from Hong Kong, HK
156.238.28.77	AS153671 Liasail Global Hongkong Limited	`0.23ms` from Hong Kong, HK
183.166.42.253	AS4134 CHINANET-BACKBONE	`8.01ms` from Huai'an, CN
134.249.98.13	AS15895 "Kyivstar" PJSC	`9.69ms` from Kyiv, UA
109.181.124.205	AS2856 British Telecommunications PLC	`1.69ms` from London, GB
90.206.158.205	AS5607 Sky UK Limited	`3.57ms` from London, GB
34.94.18.173	AS396982 Google LLC	`0.09ms` from Los Angeles, US
12.119.59.29	AS7018 AT&T Enterprises, LLC	`1.13ms` from Los Angeles, US
62.56.207.109	AS35699 Adamo Telecom Iberia S.A.	`6.28ms` from Madrid, ES
176.171.93.29	AS5410 Bouygues Telecom SA	`5.81ms` from Marseille, FR
80.15.0.189	AS3215 Orange S.A.	`3.16ms` from Paris, FR
91.205.152.61	AS47956 XFone 018 Ltd	`0.25ms` from Petaẖ Tiqva, IL
18.209.170.77	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
3.80.62.109	AS14618 Amazon.com, Inc.	`0.44ms` from Reston, US
20.184.146.189	AS8075 Microsoft Corporation	`0.61ms` from San Jose, US
125.145.100.189	AS4766 Korea Telecom	`6.52ms` from Seoul, KR
119.83.87.45	AS10010 TOKAI Communications Corporation	`1.95ms` from Tokyo, JP
54.150.1.189	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
111.108.240.205	AS2516 KDDI CORPORATION	`0.62ms` from Tokyo, JP
114.162.82.61	AS4713 NTT DOCOMO BUSINESS,Inc.	`16.05ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 37.16.31.13

traceroute to 37.16.31.13 (37.16.31.13): 64 hops max, 52 byte packets

2 [AS36994] 196.60.9.248 1.219 ms

3 [AS40509] 37.16.31.13 0.152 ms

Measurement taken from

IPinfo ProbeNet in Johannesburg, ZA

On March 20th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS40509 at robtex.

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