AS151847
Fastmail Pty Ltd
AS151847 is Fastmail Pty Ltd. It announces 1,024 IPv4 addresses in 4 prefixes, and 4 IPv6 prefixes.
Australia· APNIC· allocated 2023-10-06· Business
1,024
IPv4 addresses announced
4
IPv4 prefixes
4
IPv6 prefixes
100.00%
of its routes RPKI-valid
1,024
of its IPv4 geolocated
3
countries
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States512 · 50.00%
- Australia256 · 25.00%
- The Netherlands256 · 25.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- FASTMAILPTYLTD-AS-AP
- name
- Fastmail Pty Ltd
- org
- ORG-FA47-AP
- org name
- Fastmail Pty Ltd
- org address
- Level 2, 114 William Street
- org country
- AU
- country
- AU
- source
- apnic
- updated
- 2025-11-05
- descr
- Fastmail Pty Ltd
- maintainer
- APNIC-HM
- maintainer email
- helpdesk@apnic.net
- abuse
- AF708-AP
- abuse name
- ABUSE FASTMAILPTYLTDAU
- abuse email
- abuse@fastmail.com
- abuse kind
- role
- admin
- FPLA12-AP
- admin name
- Fastmail Pty Ltd administrator
- admin email
- abuse@fastmail.com
- admin phone
- +61457416436
- admin kind
- role
- admin country
- AU
- tech
- FPLA12-AP
- tech name
- Fastmail Pty Ltd administrator
- tech email
- abuse@fastmail.com
- tech phone
- +61457416436
- tech kind
- role
- tech country
- AU
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 0.20%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Anycast IP25625.00%
- 0.88%
- SMTP IP333.22%
- 0.29%
- Web IP11411.13%
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 103.168.172.0/24 | Australia | Valid | 18 | 2026-10-02 |
| 202.12.124.0/24 | United States | Valid | 18 | 2026-10-02 |
| 204.75.18.0/24 | The Netherlands | Valid | 18 | 2026-10-02 |
| 204.75.19.0/24 | United States | Valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.