203.187.145.0/24

AS3300 · British Telecommunications PLC

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Hong Kong
Domain	bt.com
ASN	AS3300
Parent Range	203.187.128.0/19
Registry	APNIC
ID	BT-GIA-SNG

WHOIS Details

inetnum:        203.187.145.0 - 203.187.145.255
netname:        BT-GIA-SNG
descr:          BT GIA SNG
country:        HK
geoloc:         22.279845 114.171083
admin-c:        MB29-AP
tech-c:         MB29-AP
abuse-c:        AI330-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-AP-INFONET
mnt-irt:        IRT-INFONET-AP
last-modified:  2022-11-15T13:45:15Z
source:         APNIC

irt:            IRT-INFONET-AP
address:        BT Global Services
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        MB29-AP
tech-c:         MB29-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-06-06
remarks:        [email protected] was validated on 2025-06-25
mnt-by:         MAINT-AP-INFONET
last-modified:  2025-11-18T00:26:52Z
source:         APNIC

role:           ABUSE INFONETAP
country:        ZZ
address:        BT Global Services
phone:          +000000000
e-mail:         [email protected]
admin-c:        MB29-AP
tech-c:         MB29-AP
nic-hdl:        AI330-AP
remarks:        Generated from irt object IRT-INFONET-AP
remarks:        [email protected] was validated on 2025-06-06
remarks:        [email protected] was validated on 2025-06-25
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-25T07:26:46Z
source:         APNIC

person:         Matthias Blum
address:        BT
address:        Telecomlaan 9
address:        B-1831 Diegem
address:        Belgium
country:        BE
phone:          +32 2 700 2851
fax-no:         +32 2 200 2851
e-mail:         [email protected]
mnt-by:         MAINT-AP-INFONET
nic-hdl:        MB29-AP
last-modified:  2015-06-05T07:45:20Z
source:         APNIC

route:          203.187.145.0/24
origin:         AS3300
descr:          Infonet Services Corporation 2160 East Grand Avenue
mnt-by:         MAINT-AP-INFONET
last-modified:  2022-06-09T09:00:59Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.187.145.0/24

Range	ASN	Company	Num of IPs
203.187.128.0/19	AS3300	BT-Infonet, Internet Service Provider	8,192

Nearby Ranges

BGP prefixes that overlap with 203.187.0.0/16

Range	ASN	Company	Num of IPs
203.187.128.0/19	AS3300	BT-Infonet, Internet Service Provider	8,192
203.187.192.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.193.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.146.0/24	AS3300	BT GIA SNG	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
203.187.145.9	AS3300 British Telecommunications PLC	`1.43ms` 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
198.186.190.120	AS6450 Providers Internet Exchange	`0.39ms` from Ashburn, US
51.79.46.88	AS16276 OVH SAS	`0.08ms` from Beauharnois, CA
85.220.23.56	AS6677 Mila hf	`1.16ms` from Hafnarfjoerdur, IS
86.164.229.120	AS2856 British Telecommunications PLC	`4.01ms` from London, GB
80.182.48.104	AS3269 Telecom Italia S.p.A.	`3.89ms` from Milan, IT
189.188.88.104	AS8151 UNINET	`4.14ms` from Santiago de Queretaro, MX
220.86.92.56	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
102.153.16.88	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`12.20ms` from Tunis, TN
184.29.152.24	AS21342 Akamai International B.V.	`0.09ms` from Vienna, AT
117.35.192.40	AS4134 CHINANET-BACKBONE	`7.57ms` from Xi'an, CN
182.120.37.120	AS4837 CHINA UNICOM China169 Backbone	`3.31ms` from Zhengzhou, CN
23.206.81.104	AS16625 Akamai Technologies, Inc.	`0.10ms` from Auckland, NZ
186.128.181.104	AS22927 Telefonica de Argentina	`1.33ms` from Buenos Aires, AR
160.179.162.248	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`4.69ms` from Casablanca, MA
34.66.142.152	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
142.154.39.24	AS25019 Saudi Telecom Company JSC	`2.87ms` from Jeddah, SA
195.206.233.40	AS197035 TVIN-INET, LLC	`1.55ms` from Kyiv, UA
88.19.105.152	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.37ms` from Madrid, ES
172.213.66.8	AS8075 Microsoft Corporation	`0.19ms` from Milan, IT
67.80.81.136	AS6128 Cablevision Systems Corp.	`7.54ms` from New York City, US
176.50.79.184	AS12389 PJSC Rostelecom	`5.78ms` from Novosibirsk, RU
52.233.86.88	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
190.95.40.24	AS14117 Telefonica del Sur S.A.	`7.89ms` from Santiago, CL
75.172.14.248	AS209 CenturyLink Communications, LLC	`1.65ms` from Seattle, US
203.249.171.136	AS17593 NDS Coporation	`2.44ms` 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 -f3 203.187.145.9

traceroute to 203.187.145.9 (203.187.145.9): 64 hops max, 52 byte packets

3 [AS3223] 5.254.78.149 2.45 ms

4 [AS1299] 213.248.91.109 2.801 ms

5 [AS1299] 62.115.52.253 2.702 ms

6 *

7 *

8 [AS4637] 202.84.153.38 173.994 ms

9 *

10 [AS3300] 203.187.145.9 191.836 ms

Measurement taken from

IPinfo ProbeNet in Portsmouth, GB

On December 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales