ResearchRouting table, RPKI, IRR & looking glass

AS40509 Fly.io, Inc.

AS40509 (FLY) is registered to Fly.io, Inc. in US, through ARIN. It originates 259 prefixes in the global routing table.

190
IPv4 prefixes
69
IPv6 prefixes
76,288
IPv4 addresses
100%
RPKI valid
Registration

Who holds AS40509

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS40509
Handle
FLY
Organization
Fly.io, Inc.
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       40509
ASName:         FLY
ASHandle:       AS40509
RegDate:        2017-12-20
Updated:        2017-12-20
Ref:            https://rdap.arin.net/registry/autnum/40509


OrgName:        Fly.io, Inc.
OrgId:          FLYIO
Address:        2261 Market Street
City:           San Francisco
StateProv:      CA
PostalCode:     94114
Country:        US
RegDate:        2017-01-18
Updated:        2025-11-18
Ref:            https://rdap.arin.net/registry/entity/FLYIO


OrgAbuseHandle: ABUSE8489-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-510-768-8430 
OrgAbuseEmail:  abuse@fly.io
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE8489-ARIN

OrgTechHandle: FLYOP-ARIN
OrgTechName:   Fly Ops
OrgTechPhone:  +1-510-768-8430 
OrgTechEmail:  ops@fly.io
OrgTechRef:    https://rdap.arin.net/registry/entity/FLYOP-ARIN

OrgNOCHandle: FLYOP-ARIN
OrgNOCName:   Fly Ops
OrgNOCPhone:  +1-510-768-8430 
OrgNOCEmail:  ops@fly.io
OrgNOCRef:    https://rdap.arin.net/registry/entity/FLYOP-ARIN

OrgTechHandle: BERRY359-ARIN
OrgTechName:   Berryman, Steve 
OrgTechPhone:  +447886749129 
OrgTechEmail:  steve@fly.io
OrgTechRef:    https://rdap.arin.net/registry/entity/BERRY359-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Routing

What AS40509 announces

Prefixes originated by AS40509 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
190
IPv6 prefixes
69
IPv4 addresses
76,288 (298 /24s)
RPKI valid
259 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS40509
19
With an IRR route object
254 98%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (190)
37.16.0.0/2337.16.2.0/2337.16.4.0/2337.16.6.0/2337.16.8.0/2337.16.10.0/2337.16.12.0/2337.16.14.0/2337.16.16.0/2337.16.18.0/2337.16.20.0/2337.16.22.0/2337.16.24.0/2337.16.26.0/2337.16.28.0/2337.16.30.0/2350.31.246.0/2466.51.120.0/2366.51.122.0/2366.51.124.0/2366.51.126.0/2366.241.112.0/2466.241.113.0/2466.241.114.0/2466.241.115.0/2466.241.123.0/2466.241.124.0/2366.241.127.0/2477.83.140.0/22109.105.216.0/23109.105.218.0/23109.105.220.0/23109.105.222.0/23137.66.0.0/23137.66.2.0/23137.66.4.0/23137.66.6.0/23137.66.8.0/23137.66.10.0/23137.66.12.0/23137.66.14.0/23137.66.16.0/23137.66.18.0/23137.66.20.0/23137.66.22.0/23137.66.24.0/23137.66.26.0/23137.66.28.0/23137.66.30.0/23137.66.32.0/23137.66.34.0/23137.66.36.0/23137.66.38.0/23137.66.40.0/24137.66.42.0/23137.66.44.0/23137.66.46.0/23137.66.48.0/23137.66.50.0/23137.66.52.0/23137.66.54.0/23137.66.56.0/23137.66.58.0/23137.66.60.0/23137.66.62.0/23149.248.192.0/23149.248.194.0/23149.248.196.0/23149.248.198.0/23149.248.200.0/23149.248.202.0/23149.248.204.0/23149.248.206.0/23149.248.208.0/23149.248.210.0/23149.248.212.0/23149.248.214.0/23149.248.216.0/23149.248.218.0/23149.248.220.0/23149.248.222.0/23168.220.80.0/23168.220.82.0/23168.220.84.0/23168.220.86.0/23168.220.88.0/23168.220.90.0/23168.220.92.0/23168.220.94.0/23169.155.48.0/23169.155.50.0/23169.155.52.0/23169.155.54.0/23169.155.56.0/23169.155.58.0/23169.155.60.0/23169.155.62.0/23172.86.144.0/24172.86.145.0/24172.86.146.0/24172.86.147.0/24172.86.148.0/24172.86.149.0/24172.86.150.0/24172.86.151.0/24188.93.144.0/23188.93.146.0/23188.93.148.0/23188.93.150.0/23204.8.216.0/24204.8.217.0/24204.8.218.0/24204.8.219.0/24204.8.220.0/24204.8.221.0/24204.8.222.0/24204.10.76.0/23204.10.78.0/23206.51.242.0/24209.71.64.0/24
Show 70 more
209.71.65.0/24209.71.66.0/24209.71.67.0/24209.71.68.0/24209.71.69.0/24209.71.70.0/24209.71.71.0/24209.71.72.0/24209.71.73.0/24209.71.74.0/24209.71.75.0/24209.71.76.0/24209.71.77.0/24209.71.78.0/24209.71.80.0/24209.71.81.0/24209.71.82.0/24209.71.83.0/24209.71.84.0/24209.71.85.0/24209.71.86.0/24209.71.87.0/24209.71.88.0/24209.71.89.0/24209.71.90.0/24209.71.91.0/24209.71.92.0/24209.71.93.0/24209.71.94.0/24209.71.95.0/24209.71.96.0/24209.71.97.0/24209.71.98.0/24209.71.99.0/24209.71.100.0/24209.71.101.0/24209.71.102.0/24209.71.103.0/24209.71.104.0/24209.71.105.0/24209.71.106.0/24209.71.107.0/24209.71.108.0/24209.71.109.0/24209.71.110.0/24209.71.111.0/24209.198.240.0/24209.198.241.0/24209.198.242.0/24213.188.192.0/24213.188.193.0/24213.188.194.0/23213.188.196.0/23213.188.198.0/23213.188.200.0/24213.188.201.0/24213.188.202.0/24213.188.203.0/24213.188.204.0/24213.188.205.0/24213.188.206.0/24213.188.207.0/24213.188.208.0/23213.188.210.0/23213.188.212.0/23213.188.214.0/23213.188.216.0/23213.188.218.0/23213.188.220.0/23213.188.222.0/23
IPv6 (69)
2a09:8280:1::/482a09:8280:13::/482a09:8280:16::/482a09:8280:50::/482a09:8280:51::/482a09:8280:53::/482a09:8280:54::/482a09:8280:56::/482a09:8280:57::/482a09:8280:58::/482a09:8280:59::/482a09:8280:5a::/482a09:8280:5b::/482a09:8280:5d::/482a09:8280:5f::/482a09:8280:60::/482a09:8280:61::/482a09:8280:62::/482a09:8280:63::/482a09:8280:64::/482a09:8280:65::/482a09:8280:66::/482a09:8280:67::/482a09:8280:68::/482a09:8280:69::/482a09:8280:70::/482a09:8280:71::/482a09:8280:72::/482a09:8280:73::/482a09:8280:74::/482a09:8280:75::/482a09:8280:76::/482a09:8280:200::/482a09:8280:d007::/482a09:8280:e601::/482a09:8280:e602::/482a09:8280:e603::/482a09:8280:e604::/482a09:8280:e605::/482a09:8280:e606::/482a09:8280:e607::/482a09:8280:e608::/482a09:8280:e609::/482a09:8280:e610::/482a09:8280:e611::/482a09:8280:e612::/482a09:8280:e613::/482a09:8280:e614::/482a09:8280:e615::/482a09:8280:e617::/482a09:8280:e618::/482a09:8280:e620::/482a09:8280:e621::/482a09:8280:e622::/482a09:8280:e623::/482a09:8280:e624::/482a09:8280:e625::/482a09:8280:e626::/482a09:8280:e627::/482a09:8280:e628::/482a09:8280:e629::/482a09:8280:e630::/482a09:8280:e631::/482a09:8280:e632::/482a09:8280:e633::/482a09:8280:e634::/482a09:8280:e635::/482a09:8280:e636::/482a09:8280:e637::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS40509 is reached through

The AS just before AS40509 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS60068 CDN77 60
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBFLYIO-1MAINT-AS40509

Route objects with origin AS40509: RADB 644 · ARIN 503 · RIPE 150

as-sets that list AS40509 (15)
AS-CACHENETWORKSAS-DURAND1-CUSTOMERAS-HURRICANEV6AS-NETACTUATEAS-OPTUSAS-PACKETAS-RETN-ACTUAL-V4AS-TRANSROUTE-SPECAS-WEBWERKS-1AS-WINDSTREAM-CUSTAS1221:AS-CUSTOMERSAS60068:AS-DATAPACKET-CUSTOMERS-DEV:AS-ANON-HOST-20587AS60068:AS-DATAPACKET-CUSTOMERS-DEV:AS-FLYIOAS60068:AS-DATAPACKET-CUSTOMERS:AS-FLYIOAS7474:AS-CUSTOMERS
Tools

Check AS40509 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup