203.73.0.0/19

AS4780  ·  Digital United Inc.

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Summary

Country Taiwan
Domain du.net.tw
ASN AS4780
Parent Range 203.73.0.0/16
Registry APNIC
ID SEEDNET

WHOIS Details

inetnum:        203.73.0.0 - 203.73.255.255
netname:        SEEDNET
descr:          Digital United Inc.
descr:          9F, No. 125, Song Jiang Road
descr:          Taipei, Taiwan
country:        TW
admin-c:        JC256-AP
tech-c:         JC256-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-NCIC-TW
last-modified:  2025-11-07T02:28:12Z
source:         APNIC

irt:            IRT-NCIC-TW
address:        New Century InfoComm Tech. Co., Ltd.
address:        1F~11F, No. 218, Rueiguang Road
address:        Taipei Taiwan 114
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        JC256-AP
tech-c:         JC256-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:26:18Z
source:         APNIC

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         [email protected]
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        [email protected] was validated on 2025-05-23
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         Jonas Chou
nic-hdl:        JC256-AP
e-mail:         [email protected]
address:        2F, No.218, Rueiguang Road
address:        Taipei, 114, R.O.C
phone:          +886-2-7700-8888
fax-no:         +886-2-7700-8888
country:        TW
mnt-by:         MAINT-TW-TWNIC
last-modified:  2012-12-18T10:10:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.73.0.0/19

Range ASN Company Num of IPs
203.73.0.0/16 AS4780 Digital United Inc. 65,536

BGP prefixes that are contained by 203.73.0.0/19

Range ASN Company Num of IPs
203.73.21.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256

Nearby Ranges

BGP prefixes that overlap with 203.73.0.0/16

Range ASN Company Num of IPs
203.73.0.0/16 AS4780 Digital United Inc. 65,536
203.73.110.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256
203.73.21.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256
203.73.238.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256
203.73.96.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256

Hosted domains

There are 30 domain names hosted across 13 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.73.4.9 12aura.com 1
203.73.21.54 obtampon.com.tw 1

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

Pingable IPs

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

IP Address ASN Details
203.73.22.241 AS4780 Digital United Inc. 0.80ms from Taipei, TW
203.73.3.154 AS4780 Digital United Inc. 2.06ms from Taipei, TW
203.73.24.24 AS4780 Digital United Inc. 0.67ms from Taipei, TW
203.73.27.255 AS4780 Digital United Inc. 1.55ms from Taipei, TW
203.73.28.176 AS4780 Digital United Inc. 11.61ms from Taipei, TW
203.73.25.133 AS4780 Digital United Inc. 0.35ms from Taipei, TW
203.73.19.176 AS4780 Digital United Inc. 11.91ms from Taipei, TW
203.73.8.65 AS4780 Digital United Inc. 2.00ms from Taipei, TW

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
37.6.151.131 AS25472 Nova Telecommunications & Media Single Member S.A 7.82ms from Athens, GR
40.67.154.19 AS8075 Microsoft Corporation 0.24ms from Boydton, US
184.154.151.51 AS32475 Internap Holding LLC 0.89ms from Chicago, US
40.128.45.227 AS7029 Windstream Communications LLC 0.46ms from Dallas, US
5.30.182.243 AS15802 Emirates Integrated Telecommunications Company PJSC 3.62ms from Dubai, AE
74.234.115.147 AS8075 Microsoft Corporation 0.20ms from Dublin, IE
119.116.109.211 AS4837 CHINA UNICOM China169 Backbone 5.96ms from Liaoyang, CN
87.254.254.35 AS6758 Monaco Telecom S.A. 10.51ms from Milan, IT
13.234.77.51 AS16509 Amazon.com, Inc. 0.14ms from Mumbai, IN
223.83.235.179 AS56045 China Mobile communications corporation 5.09ms from Nanchang, CN
68.183.137.147 AS14061 DigitalOcean, LLC 0.22ms from New York City, US
209.143.35.243 AS7106 Com Net, Inc. 4.02ms from Ottoville, US
92.139.100.19 AS3215 Orange S.A. 5.79ms from Paris, FR
218.52.31.99 AS9318 SK Broadband Co Ltd 4.50ms from Seoul, KR
171.120.81.3 AS4837 CHINA UNICOM China169 Backbone 3.42ms from Taiyuan, CN
77.58.126.19 AS6730 Sunrise GmbH 3.48ms from Zuerich, CH
80.201.191.83 AS5432 Proximus NV 2.50ms from Brussels, BE
136.115.42.227 AS396982 Google LLC 0.12ms from Council Bluffs, US
12.18.49.211 AS7018 AT&T Enterprises, LLC 1.53ms from Dallas, US
74.122.37.147 AS55201 SkyQuantum Internet Service 0.20ms from Fremont, US
73.70.174.163 AS7922 Comcast Cable Communications, LLC 5.36ms from Fremont, US
124.71.82.163 AS55990 Huawei Cloud Service data center 1.65ms from Guangzhou, CN
66.66.145.243 AS11351 Charter Communications Inc 19.28ms from New York City, US
80.125.77.3 AS15557 Societe Francaise Du Radiotelephone - SFR SA 1.42ms from Paris, FR
13.251.22.19 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -f7 -m12 203.73.17.164
traceroute to 203.73.17.164 (203.73.17.164): 12 hops max, 52 byte packets
7 [AS9002] 87.245.234.187 204.065 ms
8 [AS9002] 87.245.251.209 204.109 ms
9 [AS4780] 139.175.58.81 204.172 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Bacau, RO
On

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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