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WorldIP.io
Autonomous System

AS40509

Fly.io, Inc.

Fly.io, Inc. United States 🌐 fly.io
Announced IPs
74,496
CIDR prefixes
45
ASN
AS40509

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Web3 footprint

AS40509 hosts 1 observed decentralized-network node across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

IPFS IPFS 1

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
37.16.0.0/19 8.2K
93.1%
Fly.io, Inc. US — —
137.66.0.0/19 8.2K
94.5%
Fly.io, Inc. US — —
149.248.192.0/19 8.2K
94.6%
Fly.io, Inc. US — —
213.188.192.0/19 8.2K
80.9%
Fly.io, Inc. US California San Jose
137.66.48.0/20 4.1K
92.5%
Fly.io, Inc. US — —
168.220.80.0/20 4.1K
74.4%
Fly.io, Inc. US — —
169.155.48.0/20 4.1K
90.4%
Fly.io, Inc. US — —
209.71.80.0/20 4.1K
79.9%
Fly.io, Inc. US — —
213.188.208.0/20 4.1K
0.0%
Fly.io, Inc. US — —
66.51.120.0/21 2.0K
99.1%
Fly.io, Inc. US — —
109.105.216.0/21 2.0K
99.9%
Fly.io, Inc. US — —
137.66.32.0/21 2.0K
93.2%
Fly.io, Inc. US — —
172.86.144.0/21 2.0K
93.8%
Fly.io, Inc. US Illinois Chicago
188.93.144.0/21 2.0K
95.9%
Fly.io, Inc. US — —
209.71.64.0/21 2.0K
72.0%
Fly.io, Inc. US — —
209.71.80.0/21 2.0K
84.8%
Fly.io, Inc. US — —
209.71.96.0/21 2.0K
76.2%
Fly.io, Inc. US California San Jose
213.188.192.0/21 2.0K
0.0%
Fly.io, Inc. US — —
66.241.112.0/22 1.0K
92.4%
Fly.io, Inc. US — —
77.83.140.0/22 1.0K
87.4%
Fly.io, Inc. US — —
137.66.44.0/22 1.0K
95.3%
Fly.io, Inc. US — —
172.86.144.0/22 1.0K
0.0%
Fly.io, Inc. US Illinois Chicago
172.86.148.0/22 1.0K
96.8%
Fly.io, Inc. US — —
204.8.216.0/22 1.0K
99.3%
Fly.io, Inc. US California San Jose
204.10.76.0/22 1.0K
95.6%
Fly.io, Inc. US — —
209.71.72.0/22 1.0K
77.0%
Fly.io, Inc. US Texas Dallas
209.71.88.0/22 1.0K
73.8%
Fly.io, Inc. US — —
209.71.96.0/22 1.0K
83.6%
Fly.io, Inc. US California San Jose
66.241.124.0/23 512
89.1%
Fly.io, Inc. US — —
137.66.42.0/23 512
93.9%
Fly.io, Inc. US — —
172.86.146.0/23 512
91.2%
Fly.io, Inc. US — —
204.8.216.0/23 512
0.0%
Fly.io, Inc. US California San Jose
204.8.220.0/23 512
99.4%
Fly.io, Inc. US Texas Dallas
209.71.72.0/23 512
0.0%
Fly.io, Inc. US Texas Dallas
209.71.76.0/23 512
68.9%
Fly.io, Inc. US Texas Dallas
209.71.92.0/23 512
0.0%
Fly.io, Inc. US Texas Dallas
209.71.94.0/23 512
85.0%
Fly.io, Inc. US — —
209.71.100.0/23 512
68.2%
Fly.io, Inc. US — —
209.71.102.0/23 512
0.0%
Fly.io, Inc. US Virginia Ashburn
209.71.104.0/23 512
69.3%
Fly.io, Inc. US — —
209.198.240.0/23 512
84.4%
Fly.io, Inc. US — —
50.31.246.0/24 256
98.8%
Fly.io, Inc. US — —
66.241.112.0/24 256
0.0%
Fly.io, Inc. SE — —
66.241.113.0/24 256
0.0%
Fly.io, Inc. IN — —
66.241.114.0/24 256
0.0%
Fly.io, Inc. ZA — —
66.241.115.0/24 256
0.0%
Fly.io, Inc. CA — —
66.241.127.0/24 256
85.9%
Fly.io, Inc. US — —
137.66.40.0/24 256
93.8%
Fly.io, Inc. US — —
172.86.145.0/24 256
89.5%
Fly.io, Inc. US Illinois Chicago
172.86.148.0/24 256
0.0%
Fly.io, Inc. NL North Holland Amsterdam
172.86.149.0/24 256
0.0%
Fly.io, Inc. DE Hesse Frankfurt am Main
172.86.150.0/24 256
0.0%
Fly.io, Inc. FR Île-de-France Paris
172.86.151.0/24 256
0.0%
Fly.io, Inc. US California Los Angeles
204.8.218.0/24 256
0.0%
Fly.io, Inc. US Texas Dallas
204.8.219.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
204.8.222.0/24 256
77.3%
Fly.io, Inc. US — —
206.51.242.0/24 256
71.5%
Fly.io, Inc. US — —
209.71.64.0/24 256
0.0%
Fly.io, Inc. NL North Holland Amsterdam
209.71.65.0/24 256
0.0%
Fly.io, Inc. SE Stockholm County Stockholm
209.71.66.0/24 256
0.0%
Fly.io, Inc. US Texas Dallas
209.71.67.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
209.71.68.0/24 256
0.0%
Fly.io, Inc. IN Maharashtra Mumbai
209.71.69.0/24 256
0.0%
Fly.io, Inc. US New Jersey Secaucus
209.71.70.0/24 256
0.0%
Fly.io, Inc. FR Île-de-France Paris
209.71.71.0/24 256
0.0%
Fly.io, Inc. US Texas Dallas
209.71.74.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
209.71.75.0/24 256
0.0%
Fly.io, Inc. DE Hesse Frankfurt am Main
209.71.76.0/24 256
0.0%
Fly.io, Inc. US Texas Dallas
209.71.77.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
209.71.78.0/24 256
67.2%
Fly.io, Inc. US — —
209.71.80.0/24 256
0.0%
Fly.io, Inc. SG — —
209.71.81.0/24 256
0.0%
Fly.io, Inc. US Virginia Ashburn
209.71.82.0/24 256
0.0%
Fly.io, Inc. GB England London
209.71.83.0/24 256
0.0%
Fly.io, Inc. ZA Gauteng Johannesburg
209.71.84.0/24 256
0.0%
Fly.io, Inc. US California Los Angeles
209.71.85.0/24 256
0.0%
Fly.io, Inc. GB England London
209.71.86.0/24 256
0.0%
Fly.io, Inc. FR Île-de-France Paris
209.71.87.0/24 256
0.0%
Fly.io, Inc. US Texas Dallas
209.71.88.0/24 256
0.0%
Fly.io, Inc. JP Tokyo Tokyo
209.71.89.0/24 256
0.0%
Fly.io, Inc. US Illinois Chicago
209.71.90.0/24 256
0.0%
Fly.io, Inc. DE Hesse Frankfurt am Main
209.71.91.0/24 256
0.0%
Fly.io, Inc. US California Los Angeles
209.71.92.0/24 256
67.6%
Fly.io, Inc. US Texas Dallas
209.71.94.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
209.71.95.0/24 256
0.0%
Fly.io, Inc. SG — —
209.71.96.0/24 256
0.0%
Fly.io, Inc. US California San Jose
209.71.97.0/24 256
0.0%
Fly.io, Inc. AU New South Wales Sydney
209.71.98.0/24 256
0.0%
Fly.io, Inc. NL North Holland Amsterdam
209.71.99.0/24 256
0.0%
Fly.io, Inc. CA Ontario Toronto
209.71.100.0/24 256
0.0%
Fly.io, Inc. CA Ontario Toronto
209.71.101.0/24 256
0.0%
Fly.io, Inc. US California San Jose
209.71.102.0/24 256
66.4%
Fly.io, Inc. US Virginia Ashburn
209.71.106.0/24 256
69.9%
Fly.io, Inc. US — —
209.198.240.0/24 256
87.1%
Fly.io, Inc. US — —
209.198.241.0/24 256
0.0%
Fly.io, Inc. US — —
213.188.200.0/24 256
0.0%
Fly.io, Inc. US California San Jose
213.188.201.0/24 256
0.0%
Fly.io, Inc. BR São Paulo São Paulo
213.188.202.0/24 256
0.0%
Fly.io, Inc. AU New South Wales Sydney
213.188.203.0/24 256
0.0%
Fly.io, Inc. JP — —
213.188.204.0/24 256
0.0%
Fly.io, Inc. GB England London

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS40509 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
66.241.113.0/24 90,916 2026-07-23 17:28:24
209.71.68.0/24 58,161 2026-07-23 17:28:54
209.71.97.0/24 31,424 2026-07-23 17:21:04
213.188.202.0/24 20,694 2026-07-23 17:27:23
213.188.206.0/24 12,865 2026-07-23 17:21:06
204.8.222.0/24 12,787 2026-07-23 17:21:01
209.71.76.0/24 12,102 2026-07-23 17:21:04
209.71.66.0/24 12,102 2026-07-23 17:21:04
209.71.87.0/24 12,088 2026-07-23 17:21:04
209.71.71.0/24 12,088 2026-07-23 17:21:04
209.71.92.0/24 12,063 2026-07-23 17:21:04
209.71.72.0/24 12,048 2026-07-23 17:21:04
204.10.76.0/23 11,672 2026-07-23 17:21:01
209.71.93.0/24 11,573 2026-07-23 17:21:04
209.71.80.0/24 10,755 2026-07-23 17:21:04
209.71.95.0/24 10,709 2026-07-23 17:21:04
204.8.220.0/24 10,108 2026-07-23 17:21:01
204.8.218.0/24 10,092 2026-07-23 17:21:01
172.86.144.0/24 10,020 2026-07-23 17:20:34
66.241.124.0/23 8,552 2026-07-23 17:19:44
172.86.146.0/24 8,539 2026-07-23 17:20:34
209.198.241.0/24 8,485 2026-07-23 17:21:04
213.188.210.0/23 8,083 2026-07-23 17:21:06
37.16.8.0/23 7,977 2026-07-23 17:19:25
37.16.4.0/23 7,974 2026-07-23 17:19:25
37.16.20.0/23 7,967 2026-07-23 17:19:25
37.16.6.0/23 7,963 2026-07-23 17:19:25
37.16.22.0/23 7,961 2026-07-23 17:19:25
37.16.2.0/23 7,961 2026-07-23 17:19:25
37.16.28.0/23 7,949 2026-07-23 17:19:25
37.16.0.0/23 7,948 2026-07-23 17:19:25
37.16.10.0/23 7,945 2026-07-23 17:19:25
37.16.30.0/23 7,945 2026-07-23 17:19:25
37.16.12.0/23 7,940 2026-07-23 17:19:25
37.16.16.0/23 7,937 2026-07-23 17:19:25
37.16.14.0/23 7,935 2026-07-23 17:19:25
37.16.24.0/23 7,934 2026-07-23 17:19:25
37.16.26.0/23 7,915 2026-07-23 17:19:25
37.16.18.0/23 7,912 2026-07-23 17:19:25
137.66.30.0/23 7,882 2026-07-23 17:20:21
213.188.203.0/24 7,855 2026-07-23 17:21:06
137.66.8.0/23 7,791 2026-07-23 17:20:21
137.66.36.0/23 7,788 2026-07-23 17:20:21
137.66.10.0/23 7,783 2026-07-23 17:20:21
137.66.12.0/23 7,774 2026-07-23 17:20:21
137.66.6.0/23 7,770 2026-07-23 17:20:21
137.66.28.0/23 7,767 2026-07-23 17:20:21
168.220.92.0/23 7,765 2026-07-23 17:20:33
168.220.86.0/23 7,763 2026-07-23 17:20:33
168.220.80.0/23 7,759 2026-07-23 17:20:33

Showing top 50 of 184 announced prefixes by sample volume.

Frequently Asked Questions

What is AS40509?

AS40509 is an Autonomous System Number assigned to Fly.io, Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS40509 announce?

AS40509 announces 74.5K IPv4 addresses distributed across 45 routed CIDR prefixes. The network is registered in United States.

Who operates AS40509?

AS40509 is operated by Fly.io, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS40509 registered in?

AS40509 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 17:25:31 UTC
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