1. All IP Ranges
  2. 103.0.0.0/8
  3. 103.21.0.0/16
  4. AS54187  | 103.21.28.0/23

103.21.28.0/23

AS54187  ·  EZE Castle Integration Inc.

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Summary

Country Hong Kong
Domain eci.com
ASN AS54187
Registry APNIC
ID ECI-HK

WHOIS Details

inetnum:        103.21.28.0 - 103.21.29.255
netname:        ECI-HK
descr:          Eze Castle Integration, Inc. - ECINet
country:        HK
admin-c:        MA507-AP
tech-c:         MA507-AP
abuse-c:        AE307-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-ECI-SG
mnt-irt:        IRT-ECI-SG
last-modified:  2022-10-26T14:54:03Z
source:         APNIC

irt:            IRT-ECI-SG
address:        529 Fifth Avenue, 7th Floor, New York, NY 10017
e-mail:         mabbey@eci.com
abuse-mailbox:  wtan@eci.com
admin-c:        MA507-AP
tech-c:         MA507-AP
auth:           # Filtered
remarks:        mabbey@eci.com was validated on 2026-02-17
remarks:        wtan@eci.com was validated on 2026-02-25
mnt-by:         MAINT-ECI-SG
last-modified:  2026-02-25T21:14:29Z
source:         APNIC

role:           ABUSE ECISG
country:        ZZ
address:        529 Fifth Avenue, 7th Floor, New York, NY 10017
phone:          +000000000
e-mail:         mabbey@eci.com
admin-c:        MA507-AP
tech-c:         MA507-AP
nic-hdl:        AE307-AP
remarks:        Generated from irt object IRT-ECI-SG
remarks:        mabbey@eci.com was validated on 2026-02-17
remarks:        wtan@eci.com was validated on 2026-02-25
abuse-mailbox:  wtan@eci.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-25T21:14:46Z
source:         APNIC

role:           Mike Abbey
address:        529 Fifth Avenue, 7th Floor, New York, NY 10017
country:        US
phone:          +1-617-217-3006
fax-no:         +1-617-217-3001
e-mail:         mabbey@eci.com
admin-c:        MA507-AP
tech-c:         MA507-AP
nic-hdl:        MA507-AP
mnt-by:         MAINT-ECI-SG
last-modified:  2012-10-02T05:18:07Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.21.0.0/16

Range ASN Company Num of IPs
103.21.156.0/22 AS134141 B2B Wholesale Pty Ltd 1,024
103.21.60.0/22 AS131148 Bank Of Taiwan 1,024
103.21.216.0/22 AS9905 PT. LINKNET, 1,024
103.21.176.0/22 AS9808 China Mobile Communications Corporation 1,024
103.21.128.0/22 AS58927 M.D.G. IT Pty Ltd 1,024
103.21.48.0/22 AS58750 ThinkEx Holdings Pty Ltd 1,024
103.21.252.0/22 AS131310 PLTPRO Data Centre Sdn. Bhd. 1,024
103.21.120.0/22 AS131368 Petrovietnam oil corporation 1,024
103.21.40.0/22 AS58715 EarthTelcommunication 1,024
103.21.204.0/22 AS131746 PT. Medianusa Permana 1,024
103.21.116.0/22 AS55994 Shanghai ruisu Network Technology Co.,Ltd 1,024
103.21.140.0/22 AS4812 Shanghai Meicheng Technology Information Co.,Ltd. 1,024
103.21.140.0/22 AS4811 Shanghai Meicheng Technology Information Co.,Ltd. 1,024
103.21.84.0/22 AS45786 PT Hawk Teknologi Solusi 1,024
103.21.132.0/22 AS38835 Buroserv Australia Pty Ltd 1,024
103.21.124.0/22 AS132423 Powai 1,024
103.21.32.0/22 AS132434 Maxis Broadband Sdn Bhd 1,024
103.21.148.0/22 AS38732 CMC Telecom Infrastructure Company 1,024
103.21.0.0/22 AS38195 SUPERLOOP (AUSTRALIA) PTY LTD 1,024
103.21.200.0/22 AS38091 LG HelloVision Corp. 1,024
103.21.208.0/22 AS36352 Kaifeng Guochao E-commerce Co.Ltd. 1,024
103.21.60.0/22 AS3462 Bank Of Taiwan 1,024
103.21.184.0/22 AS132453 TRIPLE PLAY BROADBAND PRIVATE LIMITED 1,024
103.21.8.0/22 AS26658 UNIT 04, 7/F, BRIGHT WA, NO. 33 MONG KOK rd, kl, HK 1,024
103.21.152.0/22 AS24028 REDtone Marketing Sdn. Bhd. 1,024
103.21.240.0/22 AS16509 Amazon Connection Technology Services (Beijing) Co., LTD 1,024
103.21.236.0/22 AS12886 LEW TelNet GmbH 1,024
103.21.116.0/22 AS138950 Shanghai ruisu Network Technology Co.,Ltd 1,024
103.21.100.0/23 AS140807 CUU LONG INTERNATIONAL DEVELOPMENT SERVICES AND TRADING JOINT STOCK COMPANY 512
103.21.68.0/23 AS136290 COUNTRY ONLINE SERVICES 512
103.21.96.0/23 AS140807 AN ANH PHONG COMPANY LIMITED 512
103.21.222.0/23 AS149829 Dream View Cable Network 512
103.21.6.0/23 AS150069 CLOUDNET INTERNET SERVICE PVT LTD 512
103.21.70.0/23 AS150070 SPIRETEL TECHNOLOGIES PRIVATE LIMITED 512
103.21.58.0/23 AS394695 P.D.R Solutions FZC 512
103.21.18.0/23 AS58714 19th Floor, Tower C and D, Building No. 14, DLF Cyber City, 512
103.21.80.0/24 AS6453 THALES DIS FRANCE SAS 256
103.21.233.0/24 AS131210 Yashtel 256
103.21.195.0/24 AS149967 PT Indonesia China Mobile 256
103.21.232.0/24 AS131210 Yashtel 256
103.21.12.0/24 AS9927 PhilCom Corporation 256
103.21.231.0/24 AS132468 Satsol C-Band Infrastructure and clients 256
103.21.52.0/24 AS203020 HostRoyale Technologies Pvt Ltd 256
103.21.138.0/24 AS21859 ITAOYUN LIMITED IPXO 256
103.21.230.0/24 AS132468 Satsol O3B Infrastructure and clients 256
103.21.187.0/24 AS132453 TRIPLEPLAY INTERACTIVE PVT. LTD. 256
103.21.193.0/24 AS132450 New Era IT Ltd 256
103.21.175.0/24 AS132449 ALBANY 256
103.21.208.0/24 AS36352 Kaifeng Guochao E-commerce Co.Ltd. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
103.21.28.66 AS54187 EZE Castle Integration Inc. 0.83ms from Hong Kong, HK
103.21.29.49 AS54187 EZE Castle Integration Inc. 0.99ms from Hong Kong, HK

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
2.51.234.23 AS5384 Emirates Internet 4.27ms from Al Fujairah City, AE
4.156.16.119 AS8075 Microsoft Corporation 0.59ms from Ashburn, US
190.251.102.7 AS13489 UNE EPM TELECOMUNICACIONES S.A. 10.86ms from Bogota, CO
45.240.91.39 AS24863 Link Egypt (Link.NET) 9.10ms from Cairo, EG
156.223.181.135 AS8452 TE-AS 6.70ms from Cairo, EG
91.16.240.23 AS3320 Deutsche Telekom AG 8.21ms from Frankfurt am Main, DE
77.189.135.199 AS6805 Telefonica Germany GmbH & Co.OHG 2.80ms from Frankfurt am Main, DE
110.75.225.135 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.90ms from Hangzhou, CN
82.223.158.7 AS8560 IONOS SE 0.36ms from Logrono, ES
148.234.51.247 AS3454 Universidad Autonoma de Nuevo Leon 2.40ms from Monterrey, MX
194.182.114.55 AS60032 Coriolis Telecom SAS 3.36ms from Paris, FR
191.33.22.119 AS18881 TELEFÔNICA BRASIL S.A 2.13ms from Rio de Janeiro, BR
106.75.221.23 AS4811 China Telecom (Group) 3.91ms from Shanghai, CN
140.115.77.103 AS18420 National Central University 2.80ms from Taipei, TW
188.186.1.135 AS41682 JSC ER-Telecom Holding 12.75ms from Yekaterinburg, RU
24.237.83.231 AS8047 GENERAL COMMUNICATION, INC. 8.54ms from Anchorage, US
23.22.152.23 AS14618 Amazon.com, Inc. 0.49ms from Ashburn, US
71.32.28.39 AS19901 Brightspeed 8.21ms from Ashburn, US
156.212.67.215 AS8452 TE-AS 6.01ms from Cairo, EG
41.47.2.135 AS8452 TE-AS 4.45ms from Cairo, EG
105.188.71.71 AS36925 MEDITELECOM 3.70ms from Casablanca, MA
37.229.7.167 AS15895 Kyivstar PJSC 7.35ms from Kyiv, UA
126.109.133.7 AS17676 SoftBank Corp. 8.71ms from Osaka, JP
88.88.17.167 AS2119 Telenor Norge AS 6.30ms from Oslo, NO
222.106.109.23 AS4766 Korea Telecom 1.00ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f6 103.21.29.49
traceroute to 103.21.29.49 (103.21.29.49): 64 hops max, 52 byte packets
6 [] 103.117.52.5 2.552 ms
7 [AS4637] 210.57.81.218 1.671 ms
8 [AS54187] 103.21.29.49 1.881 ms
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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