125.254.120.0/21

AS17551 · Anycast Global Backbone

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Summary

Country	Australia
Domain	swoop.com.au
ASN	AS17551
Parent Range	125.254.64.0/18
Registry	APNIC
ID	SWOOP-AU

WHOIS Details

inetnum:        125.254.64.0 - 125.254.127.255
netname:        SWOOP-AU
descr:          Swoop Telecommunications Pty Ltd
country:        AU
org:            ORG-CC4-AP
admin-c:        STNO1-AP
tech-c:         STNO1-AP
abuse-c:        AS3504-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-SWOOP
mnt-routes:     MAINT-AU-SWOOP
mnt-irt:        IRT-SWOOP-AU
last-modified:  2023-09-17T22:13:34Z
geofeed:        https://geofeed.swoop.com.au/geofeed.csv
source:         APNIC

irt:            IRT-SWOOP-AU
address:        PO Box 1745
address:        Gosford, NSW, 2250
e-mail:         neteng@swoop.com.au
abuse-mailbox:  abuse@swoop.com.au
admin-c:        STNO1-AP
tech-c:         STNO1-AP
auth:           # Filtered
remarks:        abuse@swoop.com.au was validated on 2025-08-24
remarks:        neteng@swoop.com.au was validated on 2025-11-26
mnt-by:         MAINT-AU-SWOOP
last-modified:  2025-11-26T23:02:53Z
source:         APNIC

organisation:   ORG-CC4-AP
org-name:       Swoop Telecommunications Pty Ltd
org-type:       LIR
country:        AU
address:        PO Box 1745
phone:          +612-4336-2000
fax-no:         +612-43232177
e-mail:         info@cirruscomms.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:06Z
source:         APNIC

role:           ABUSE SWOOPAU
country:        ZZ
address:        PO Box 1745
address:        Gosford, NSW, 2250
phone:          +000000000
e-mail:         neteng@swoop.com.au
admin-c:        STNO1-AP
tech-c:         STNO1-AP
nic-hdl:        AS3504-AP
remarks:        Generated from irt object IRT-SWOOP-AU
remarks:        abuse@swoop.com.au was validated on 2025-08-24
remarks:        neteng@swoop.com.au was validated on 2025-11-26
abuse-mailbox:  abuse@swoop.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-26T23:03:42Z
source:         APNIC

role:           Swoop Telecommunications Network Operations
address:        PO Box 1745
country:        AU
phone:          +61-2-4336-2098
e-mail:         neteng@swoop.com.au
admin-c:        STNO1-AP
tech-c:         STNO1-AP
nic-hdl:        STNO1-AP
notify:         neteng@swoop.com.au
mnt-by:         MAINT-AU-SWOOP
last-modified:  2023-06-06T02:52:39Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 125.254.120.0/21

Range	ASN	Company	Num of IPs
125.254.64.0/18	AS17551	Swoop Telecommunications Pty Ltd	16,384
125.254.64.0/18	AS58511	Swoop Telecommunications Pty Ltd	16,384

Nearby Ranges

BGP prefixes that overlap with 125.254.0.0/16

Range	ASN	Company	Num of IPs
125.254.64.0/18	AS17551	Swoop Telecommunications Pty Ltd	16,384
125.254.64.0/18	AS58511	Swoop Telecommunications Pty Ltd	16,384
125.254.0.0/19	AS9942	TPG Internet Pty Ltd.	8,192
125.254.0.0/19	AS7545	TPG Internet Pty Ltd.	8,192
125.254.128.0/19	AS23724	Forest Eternal Communication Tech. co.ltd	8,192
125.254.32.0/20	AS9942	TPG Internet Pty Ltd.	4,096
125.254.32.0/20	AS7545	TPG Internet Pty Ltd.	4,096
125.254.160.0/21	AS9808	Forest Eternal Communication Tech. co.ltd	2,048
125.254.168.0/21	AS23724	Beijing Yunzhonglin Network Technology Co., LTD	2,048
125.254.176.0/21	AS23724	Beijing Yunzhonglin Network Technology Co., LTD	2,048
125.254.56.0/22	AS38628	HIMEJI CABLE TELEVISION CORPORATION	1,024
125.254.52.0/22	AS38794	United Information Highway Co.,Ltd.	1,024
125.254.50.0/23	AS139898	Digitec Communications Limited	512
125.254.49.0/24	AS24516	Virtutel Pty Ltd	256
125.254.48.0/24	AS24516	Virtutel Pty Ltd	256
125.254.51.0/24	AS139898	DIGITEC COMMUNICATIONS LIMITED	256

Hosted domains

There are 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
125.254.126.9	AS17551 Anycast Global Backbone	`1.14ms` from Perth, AU
125.254.124.162	AS17551 Anycast Global Backbone	`1.10ms` from Perth, AU
125.254.123.238	AS17551 Anycast Global Backbone	`1.42ms` from Perth, AU
125.254.125.193	AS17551 Anycast Global Backbone	`1.16ms` from Perth, AU
125.254.122.47	AS17551 Anycast Global Backbone	`1.14ms` from Perth, AU
125.254.127.21	AS17551 Anycast Global Backbone	`1.21ms` from Perth, AU
125.254.120.137	AS17551 Anycast Global Backbone	`0.95ms` from Perth, AU
125.254.121.135	AS17551 Anycast Global Backbone	`1.30ms` from Perth, AU

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
71.163.133.133	AS701 Verizon Business	`1.89ms` from Ashburn, US
52.42.4.117	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
177.190.233.165	AS263465 MC Online	`18.16ms` from Brasilia, BR
82.129.168.21	AS24835 Vodafone Data	`8.63ms` from Cairo, EG
109.76.45.85	AS15502 Vodafone Ireland Limited	`3.12ms` from Dublin, IE
81.174.238.197	AS6871 Plusnet	`8.04ms` from Erith, GB
116.63.129.37	AS58519 Cloud Computing Corporation	`1.03ms` from Guiyang, CN
73.206.45.181	AS7922 Comcast Cable Communications, LLC	`7.20ms` from Houston, US
95.59.104.117	AS9198 JSC Kazakhtelecom	`11.32ms` from Karagandy, KZ
134.249.130.197	AS15895 Kyivstar PJSC	`9.57ms` from Kyiv, UA
20.204.254.197	AS8075 Microsoft Corporation	`0.14ms` from Lohogaon, IN
4.19.136.21	AS3356 Level 3 Parent, LLC	`0.83ms` from Minneapolis, US
45.139.18.53	AS62366 Stolica Telecom Ltd.	`0.52ms` from Moscow, RU
153.174.6.37	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.64ms` from Osaka, JP
218.228.14.5	AS9351 ZTV CO.,LTD	`3.40ms` from Osaka, JP
98.117.250.5	AS701 Verizon Business	`3.35ms` from Philadelphia, US
14.91.94.21	AS4766 Korea Telecom	`6.64ms` from Seoul, KR
223.93.97.37	AS56041 China Mobile communications corporation	`5.87ms` from Suzhou, CN
31.62.7.165	AS5617 Orange Polska Spolka Akcyjna	`16.03ms` from Warsaw, PL
41.47.89.53	AS8452 TE-AS	`2.54ms` from Cairo, EG
156.204.171.69	AS8452 TE-AS	`5.61ms` from Cairo, EG
218.148.64.85	AS4766 Korea Telecom	`0.66ms` from Incheon, KR
95.147.193.165	AS2856 British Telecommunications PLC	`1.67ms` from London, GB
124.189.225.197	AS1221 Telstra Limited	`1.67ms` from Melbourne, AU
208.83.72.37	AS23314 Summit Broadband	`4.72ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f4 125.254.123.202

traceroute to 125.254.123.202 (125.254.123.202): 64 hops max, 52 byte packets

4 [] 15.230.139.10 0.182 ms

5 *

6 *

7 [AS16509] 99.82.9.198 0.783 ms

8 [AS16509] 99.82.9.199 0.254 ms

9 *

10 [] 103.30.217.122 2.481 ms

11 *

12 [AS17551] 125.254.123.202 4.896 ms

Measurement taken from

IPinfo ProbeNet in Perth, AU

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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