asn.dev

Routing security

AS151847 FASTMAILPTYLTD-AS-AP Fastmail Pty Ltd

Unclassified APNIC

RPKI valid 100% 8 of 8 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 5 authorising this AS

Announcements

What this network originates

8 observed

Every prefix observed with AS151847 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
103.168.172.0/24RPKI validIRR59
202.12.124.0/24RPKI validIRR57
204.75.18.0/24RPKI validIRR57
204.75.19.0/24RPKI validIRR57
2402:5d60::/36RPKI validIRR31
2402:5d60:1000::/36RPKI validIRR31
2402:5d60:2000::/36RPKI validIRR33
2402:5d60:4000::/36RPKI validIRR30

RPKI · ROAs

Route origin authorisations

5 ROAs

Signed statements by address holders that AS151847 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
103.168.172.0/24/24APNIC
202.12.124.0/24/24APNIC
204.75.18.0/23/24APNIC
2001:470:388::/48/48ARIN
2402:5d60::/32/36APNIC

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

4 declared

This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.

ASNetworkASPARouting paths
AS1828Unitas GlobalDeclaredObserved
AS6939Hurricane Electric LLCDeclaredObserved
AS13335Cloudflare, Inc.DeclaredObserved
AS48152Digital Frankfurt GmbHDeclaredObserved
AS47973Digital Realty Netherlands B.V.not declaredObserved

An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.

IRR

Registered route objects

40 objects · 30 not announced

Route objects naming AS151847 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.

PrefixSourceDescriptionMaintainerChangedRouting
204.75.18.0/23ALTDBFastmail PTY LTDMAINT-TELX2026-06-01Not announced
204.75.18.0/23APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-04-29Not announced
2001:470:388::/48ARINHurricane Electric LLCMNT-HURC2025-12-13Not announced
2402:5d60::/32APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60::/33APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60::/34APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:2000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:3000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:4000::/34APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:4000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:5000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:6000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:6000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:7000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:8000::/33APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:8000::/34APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:8000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:8000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:9000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:a000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:a000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:b000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:c000::/34APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:c000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:c000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:d000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:e000::/35APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:e000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
2402:5d60:f000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Not announced
103.168.172.0/24ALTDBFastmail PTY LTDMAINT-TELX2026-06-01Announced
103.168.172.0/24APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2023-10-12Announced
202.12.124.0/24ALTDBFastmail PTY LTDMAINT-TELX2026-06-01Announced
202.12.124.0/24APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2024-05-07Announced
204.75.18.0/24APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-04-29Announced
204.75.19.0/24APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-04-29Announced
2402:5d60::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Announced
2402:5d60:1000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Announced
2402:5d60:2000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Announced
2402:5d60:4000::/36APNICFastmail Pty LtdMAINT-FASTMAILPTYLTD-AU2026-05-14Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS151847 directly show who expects to carry it.

AS-setWhereRelationship
AS-DRTRIPELists AS151847 as a direct member
AS-HURRICANERADBLists AS151847 as a direct member
AS-HURRICANEV6RADBLists AS151847 as a direct member
AS-SET-BSCCLAPNICLists AS151847 as a direct member
AS-TELSTRA-INTL-CUSTOMERSRADBLists AS151847 as a direct member
AS-TELXALTDBLists AS151847 as a direct member
AS-UNITAS-CUSTOMERSRADBLists AS151847 as a direct member
AS13335:AS-CUSTOMERSARINLists AS151847 as a direct member
AS151847:AS-ALLAPNICLists AS151847 as a direct member

RPKI from rpki-client, validated 2026-10-19 12:02 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-19. Cross-check on bgp.he.net.