203.187.128.0/19

AS3300 · British Telecommunications PLC

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Summary

Country	United States
Domain	bt.com
ASN	AS3300
Registry	APNIC
ID	INFONET-AP-02

WHOIS Details

inetnum:        203.187.128.0 - 203.187.159.255
netname:        INFONET-AP-02
descr:          BT-Infonet, Internet Service Provider
descr:          2160 E. Grand Ave. El Segundo, CA90245
country:        US
geoloc:         22.279845 114.171083
org:            ORG-ISC1-AP
admin-c:        MB29-Ap
tech-c:         MB29-AP
abuse-c:        AI330-AP
status:         ALLOCATED PORTABLE
remarks:        BT-Infonet in AP
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-AP-INFONET
mnt-routes:     MAINT-AP-INFONET
mnt-irt:        IRT-INFONET-AP
last-modified:  2020-10-20T00:57:38Z
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

organisation:   ORG-ISC1-AP
org-name:       Infonet Services Corporation
org-type:       LIR
country:        US
address:        2160 East Grand Avenue
phone:          +44800-811-343
fax-no:         +44800-811-343
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:44Z
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:          203.187.128.0/19
origin:         AS3300
descr:          Infonet Services Corporation 2160 East Grand Avenue
mnt-by:         MAINT-AP-INFONET
last-modified:  2022-06-16T08:11:29Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.187.128.0/19

Range	ASN	Company	Num of IPs
203.187.145.0/24	AS3300	BT GIA SNG	256
203.187.146.0/24	AS3300	BT GIA SNG	256

Nearby Ranges

BGP prefixes that overlap with 203.187.0.0/16

Range	ASN	Company	Num of IPs
203.187.192.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.193.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.145.0/24	AS3300	BT GIA SNG	256
203.187.146.0/24	AS3300	BT GIA SNG	256

Hosted domains

There are 6 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.187.142.169	mahindralearning.com	2
203.187.142.161	mahindrakyc.com	1
203.187.133.63	essarsteelorissa.com	1
203.187.142.172	mmpricingsol.com	1
203.187.142.182	ecommunication-mahindra.com	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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.187.128.125	AS3300 British Telecommunications PLC	`0.66ms` from Singapore, SG
203.187.145.9	AS3300 British Telecommunications PLC	`1.43ms` from Hong Kong, HK
203.187.130.47	AS3300 British Telecommunications PLC	`0.62ms` from Singapore, SG
203.187.129.243	AS3300 British Telecommunications PLC	`1.11ms` from Singapore, SG
203.187.134.130	AS3300 British Telecommunications PLC	`0.52ms` from Sydney, 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
178.226.184.179	AS50266 Odido Netherlands B.V.	`3.69ms` from Amsterdam, NL
54.245.65.243	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
200.115.89.243	AS52375 CABASE Camara Arg de Base de Datos y Serv en Linea	`0.16ms` from Buenos Aires, AR
23.35.168.131	AS16625 Akamai Technologies, Inc.	`0.56ms` from Dallas, US
185.101.112.99	AS206597 Rational AG	`7.25ms` from Frankfurt am Main, DE
98.168.217.99	AS22773 Cox Communications Inc.	`8.18ms` from Kansas City, US
190.43.249.35	AS6147 INTEGRATEL PERÚ S.A.A.	`0.34ms` from Lima, PE
8.17.4.3	AS3356 Level 3 Parent, LLC	`2.08ms` from Miami, US
37.17.45.243	AS42772 Unitary enterprise A1	`1.11ms` from Minsk, BY
167.58.26.51	AS6057 Administracion Nacional de Telecomunicaciones	`1.65ms` from Montevideo, UY
119.192.83.3	AS4766 Korea Telecom	`1.45ms` from Seoul, KR
118.77.59.3	AS4837 CHINA UNICOM China169 Backbone	`7.00ms` from Taiyuan, CN
140.235.240.227	AS62821 MNX Solutions LLC	`0.59ms` from Ashburn, US
154.22.38.83	AS55286 B2 Net Solutions Inc.	`0.14ms` from Buffalo, US
108.197.50.147	AS7018 AT&T Enterprises, LLC	`11.79ms` from Chicago, US
95.16.190.131	AS12479 Orange Espagne SA	`1.69ms` from Madrid, ES
13.126.5.243	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
191.53.121.227	AS28202 MASTER S/A	`3.69ms` from Osasco, BR
213.44.204.51	AS5410 Bouygues Telecom SA	`10.34ms` from Paris, FR
179.216.99.83	AS28573 Claro NXT Telecomunicacoes Ltda	`19.04ms` from Porto Alegre, BR
70.235.143.179	AS7018 AT&T Enterprises, LLC	`3.59ms` from San Jose, US
81.27.34.195	AS39783 Webhuset AS	`1.60ms` from Sandefjord, NO
211.34.86.51	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.67ms` from Seoul, KR
218.55.216.3	AS9318 SK Broadband Co Ltd	`2.94ms` from Seoul, KR
126.203.116.147	AS17676 SoftBank Corp.	`3.17ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m5 203.187.157.130

traceroute to 203.187.157.130 (203.187.157.130): 5 hops max, 52 byte packets

1 [AS136258] 185.90.61.253 3.797 ms

2 [AS56655] 185.125.170.252 0.159 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Sandefjord, NO

On December 14th 2025

What are IP address ranges?

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