Autonomous System details

AS151847

Fastmail Pty Ltd  ·  fastmail.com

Australia

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AS151847 – Fastmail Pty Ltd

Field Value
Country Australia
Website fastmail.com
Hosted domains 54,955
IPv4 addresses 512
IPv6 addresses 1,208,925,819,614,629,174,706,176
ASN type Hosting
Registry apnic
Allocated 2 years ago on Oct 06, 2023
Updated 4 months ago on Nov 05, 2025

IP Ranges

Netblock Company Num of IPs
103.168.172.0/24 Fastmail Pty Ltd t/a Fastmail 256
202.12.124.0/24 Fastmail Pty Ltd 256
Netblock Company
2001:df7:1680::/48 Fastmail Pty Ltd
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WHOIS Details

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                                                ASHandle:       AS151847
                                                OrgID:          AS151847
                                                ASName:         AS151847
                                                ASNumber:       AS151847
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 54,955 domain names hosted across 34 IP addresses on this ASN.

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IP Address Domain Domains on this IP
103.168.172.37 ██████████ 51,855
103.168.172.52 ██████████ 49,245
103.168.172.65 ██████████ 162
103.168.172.39 ██████████ 55
103.168.172.54 ██████████ 47
103.168.172.29 ██████████ 13
103.168.172.45 ████████ 12
103.168.172.60 ████████ 12
103.168.172.62 ██████████ 11
103.168.172.47 ██████████ 11

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Peers

There are 3 peers for this ASN.

Peers Name
AS13335 Cloudflare, Inc.
AS1828 Unitas Global
AS6939 Hurricane Electric LLC
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS13335 Cloudflare, Inc.
AS1828 Unitas Global
AS6939 Hurricane Electric LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
2001:df7:1680::1 AS151847 Fastmail Pty Ltd 3.08ms from New York City, US
103.168.172.254 AS151847 Fastmail Pty Ltd 0.36ms from Philadelphia, US
202.12.124.241 AS151847 Fastmail Pty Ltd 0.20ms from St. Louis, US

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
129.213.124.71 AS31898 Oracle Corporation 0.31ms from Ashburn, US
97.155.249.71 AS6167 Verizon Business 19.58ms from Dallas, US
77.176.46.103 AS6805 Telefonica Germany GmbH & Co.OHG 3.65ms from Duesseldorf, DE
142.167.166.167 AS855 Bell Canada 10.46ms from Fredericton, CA
83.227.180.167 AS8434 Telenor Sverige AB 1.09ms from Goeteborg, SE
85.26.213.23 AS31213 PJSC MegaFon 7.13ms from Helsinki, FI
219.149.65.39 AS4134 CHINANET-BACKBONE 4.23ms from Liaoyang, CN
170.215.58.39 AS5650 Frontier Communications of America, Inc. 10.67ms from Los Angeles, US
96.59.205.7 AS33363 Charter Communications, Inc 9.55ms from Orlando, US
223.190.237.167 AS24560 Bharti Airtel Ltd., Telemedia Services 13.60ms from Saint Thomas Mount, IN
112.152.47.151 AS17858 LG POWERCOMM 3.72ms from Seoul, KR
18.182.173.119 AS16509 Amazon.com, Inc. 0.28ms from Tokyo, JP
211.151.130.55 AS23724 IDC, China Telecommunications Corporation 3.09ms from Beijing, CN
60.26.214.167 AS4837 CHINA UNICOM China169 Backbone 4.69ms from Beijing, CN
200.117.120.215 AS7303 Telecom Argentina S.A. 1.52ms from Buenos Aires, AR
90.184.53.215 AS203953 Hiper A/S 1.29ms from Copenhagen, DK
69.76.207.215 AS11427 Charter Communications Inc 12.57ms from Dallas, US
52.116.212.167 AS36351 IBM Cloud 0.90ms from Dallas, US
79.199.0.119 AS3320 Deutsche Telekom AG 2.17ms from Duesseldorf, DE
217.248.246.71 AS3320 Deutsche Telekom AG 8.04ms from Frankfurt am Main, DE
154.89.226.23 AS139880 OWGELS INTERNATIONAL CO., LIMITED 1.21ms from Hong Kong, HK
138.73.241.215 AS611 NB-PEI Educational Computer Network 15.71ms from Montreal, CA
2.56.185.39 AS212335 Simoresta UAB 0.22ms from Sao Paulo, BR
51.21.146.199 AS16509 Amazon.com, Inc. 0.15ms from Stockholm, SE
139.180.165.103 AS20473 The Constant Company, LLC 0.12ms from Sydney, AU

Traceroute

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

$
traceroute -a -n -q1 -f5 202.12.124.141
traceroute to 202.12.124.141 (202.12.124.141): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in St. Louis, US
On

Related Networks

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 AS151847 at robtex.

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