147.152.0.0/16

AS2856 · British Telecommunications PLC

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Summary

Country	United Kingdom
Domain	bt.com
ASN	AS2856
Registry	RIPE
ID	BT

WHOIS Details

inetnum:        147.147.0.0 - 147.152.255.255
netname:        BT
descr:          British Telecommunications plc
descr:          BT Centre 81 Newgate St
descr:          London, 7AJ
country:        GB
org:            ORG-BT4-RIPE
admin-c:        BCER1-RIPE
admin-c:        BTCR1-RIPE
tech-c:         BTCR3-RIPE
status:         LEGACY
mnt-by:         BTENT-MNT
mnt-lower:      BTENT-MNT
mnt-routes:     BTENT-MNT
created:        2012-01-18T09:29:28Z
last-modified:  2015-12-08T15:02:45Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        BTCR3-RIPE
abuse-org:      ORG-BT4-RIPE

organisation:   ORG-BT4-RIPE
org-name:       British Telecommunications PLC
country:        GB
org-type:       LIR
address:        pp HWJ380, PO Box 78961 1 Braham Street
address:        E1W 9TD
address:        London
address:        UNITED KINGDOM
phone:          +44 3316 260934
e-mail:         [email protected]
admin-c:        BTCR1-RIPE
admin-c:        MS35380-RIPE
mnt-ref:        BTENT-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BTENT-MNT
abuse-c:        BTCR3-RIPE
created:        2004-04-17T12:11:54Z
last-modified:  2025-06-19T11:44:33Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        BTCR3-RIPE
abuse-org:      undefined

role:           BT Corporate Registry
address:        British Telecommunications
address:        81 Newgate Street
address:        London GB
e-mail:         [email protected]
admin-c:        BCER1-RIPE
admin-c:        MS35380-RIPE
tech-c:         BCER1-RIPE
tech-c:         MS35380-RIPE
nic-hdl:        BTCR1-RIPE
abuse-mailbox:  [email protected]
mnt-by:         BTENT-MNT
created:        2002-03-22T09:16:45Z
last-modified:  2025-03-21T10:14:06Z
source:         RIPE

role:           BT Corporate Registry
address:        British Telecommunications
address:        81 Newgate Street
address:        London GB
remarks:        central contact point for BT Corporate data networks
e-mail:         [email protected]
admin-c:        BCER1-RIPE
admin-c:        MS35380-RIPE
tech-c:         BCER1-RIPE
nic-hdl:        BTCR3-RIPE
abuse-mailbox:  [email protected]
mnt-by:         BTENT-MNT
created:        2002-03-22T09:22:53Z
last-modified:  2025-03-21T10:06:51Z
source:         RIPE

person:         BT Computer Emergency Response Team
address:        PP L16
address:        Pheonix House
address:        202 Elder Gate
address:        Milton Keynes
address:        Buckinghamshire
address:        MK9 1BE
phone:          +44 1908 609 271
fax-no:         +44 1908 230 343
e-mail:         [email protected]
nic-hdl:        BCER1-RIPE
remarks:        BT Security Computer Emergency Response Team
mnt-by:         BTENT-MNT
created:        2001-11-08T10:50:29Z
last-modified:  2013-03-28T12:32:05Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 147.0.0.0/8

Range	ASN	Company	Num of IPs
147.215.0.0/16	AS2439	ESIEE Paris, ecole-membre de l'Universite Gustave Eiffel	65,536
147.94.0.0/16	AS2457	Aix-Marseille Universite (AMU)	65,536
147.144.0.0/16	AS2152	City College of San Francisco	65,536
147.134.0.0/16	AS22773	Creighton University	65,536
147.196.0.0/16	AS199541	Eurocontrol Experimental Centre	65,536
147.100.0.0/16	AS2200	INRAE	65,536
147.115.0.0/16	AS16509	Amazon.com, Inc.	65,536
147.137.0.0/16	AS20214	Telematics International	65,536
147.226.0.0/16	AS20452	Ball State University	65,536
147.99.0.0/16	AS2200	INRAE	65,536
147.209.0.0/16	AS17750	ENERGEX LIMITED	65,536
147.171.0.0/16	AS1942	Universite Grenoble Alpes	65,536
147.87.0.0/16	AS200233	Berner Fachhochschule	65,536
147.111.0.0/16	AS199791	Postboks 237	65,536
147.118.0.0/16	AS10370	Northwest Aerospace Training Corporation	65,536
147.128.0.0/16	AS158	Ericsson Inc.	65,536
147.108.0.0/16	AS16509	Amazon.com, Inc.	65,536
147.80.0.0/16	AS1761	Texas Department of Human Resources	65,536
147.13.0.0/16	AS197425	Saab AB	65,536
147.205.0.0/16	AS16509	Amazon.com, Inc.	65,536
147.250.0.0/16	AS2200	ENSTA Paristech - Ecole Nationale Superieure des Techniques Avancees	65,536
147.219.0.0/16	AS20115	Charter Communications LLC	65,536
147.127.0.0/16	AS1715	Ecole Nationale Superieure d'Electronique, d'Electrotechnique,	65,536
147.203.0.0/16	AS11320	ALPHAREL/optigraphics Corporation	65,536
147.26.0.0/16	AS18777	Texas State University	65,536
147.222.0.0/16	AS11649	Gonzaga University	65,536
147.180.0.0/16	AS19399	Region Stockholm	65,536
147.73.0.0/16	AS1207	Pittsburgh Supercomputing Center	65,536
147.11.0.0/16	AS16920	Wind River Systems, Inc.	65,536
147.252.0.0/16	AS1213	Metropolitan Area Network	65,536
147.69.0.0/16	AS1221	Telstra Limited	65,536
147.47.0.0/16	AS1237	Seoul National University	65,536
147.10.0.0/16	AS135887	Telstra Limited	65,536
147.122.0.0/16	AS137	SS - SISSA Trieste	65,536
147.83.0.0/16	AS13041	Universitat Politecnica de Catalunya	65,536
147.91.0.0/16	AS13092	Akademska mreza Republike Srbije - AMRES	65,536
147.211.0.0/16	AS132029	Department of Finance and Deregulation	65,536
147.153.0.0/16	AS14041	Metropolitan State University of Denver	65,536
147.2.0.0/16	AS16509	Amazon.com, Inc.	65,536
147.44.0.0/16	AS1759	StoraEnso Oyj	65,536
147.36.0.0/16	AS1559	Headquarters, USAISC	65,536
147.176.0.0/16	AS14398	Autodesk Ltd. Japan	65,536
147.70.0.0/16	AS19899	Miami Dade College	65,536
147.194.0.0/16	AS15128	Comwave Telecom Inc.	65,536
147.173.0.0/16	AS1942	C.N.R.S. - Delegation regionale Alpes	65,536
147.238.0.0/16	AS1540	Headquarters, USAISC	65,536
147.0.0.0/16	AS10796	Charter Communications Inc	65,536
147.35.0.0/16	AS1580	Headquarters, USAISC	65,536
147.34.0.0/16	AS13541	Siemens Industry Software Inc.	65,536
147.174.0.0/16	AS25968	Southeastern Louisiana University	65,536

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
147.152.33.3	montrose-environmental.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

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Pingable IPs

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

IP Address	ASN	Details
147.152.35.97	AS2856 British Telecommunications PLC	`1.72ms` from Erith, GB
147.152.17.17	AS2856 British Telecommunications PLC	`4.15ms` from London, GB
147.152.18.200	AS2856 British Telecommunications PLC	`6.05ms` from London, GB

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
65.82.114.64	AS6389 AT&T Enterprises, LLC	`1.70ms` from Atlanta, US
186.116.226.32	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.50ms` from Bogota, CO
171.37.169.208	AS4837 CHINA UNICOM China169 Backbone	`11.26ms` from Guiyang, CN
118.219.110.208	AS9318 SK Broadband Co Ltd	`2.33ms` from Incheon, KR
162.127.117.224	AS11714 Network Nebraska	`6.99ms` from Lincoln, US
172.235.39.144	AS63949 Akamai Connected Cloud	`0.22ms` from Los Angeles, US
69.224.133.224	AS7018 AT&T Enterprises, LLC	`1.81ms` from Los Angeles, US
70.127.211.32	AS33363 Charter Communications, Inc	`5.97ms` from Orlando, US
177.159.96.208	AS18881 TELEFÔNICA BRASIL S.A	`10.51ms` from São Paulo, BR
179.148.239.64	AS26599 TELEFÔNICA BRASIL S.A	`7.25ms` from São Paulo, BR
111.241.183.240	AS3462 Data Communication Business Group	`1.45ms` from Taipei, TW
50.101.126.48	AS577 Bell Canada	`5.89ms` from Toronto, CA
95.160.81.224	AS29314 VECTRA S.A.	`18.04ms` from Warsaw, PL
77.168.220.240	AS1136 KPN B.V.	`1.29ms` from Amsterdam, NL
193.177.233.32	AS203170 GERRIT Diensten BV	`4.19ms` from Amsterdam, NL
52.255.216.32	AS8075 Microsoft Corporation	`0.37ms` from Ashburn, US
79.103.203.0	AS1241 Forthnet	`11.03ms` from Athens, GR
212.37.186.0	AS35205 RFT kabel Brandenburg GmbH	`1.01ms` from Berlin, DE
136.49.193.192	AS16591 Google Fiber Inc.	`5.75ms` from Dallas, US
97.179.5.64	AS6167 Verizon Business	`8.04ms` from Denver, US
66.8.201.240	AS20001 Charter Communications Inc	`7.60ms` from Honolulu, US
193.2.111.64	AS2107 ARNES	`1.09ms` from Ljubljana, SI
81.153.2.224	AS2856 British Telecommunications PLC	`5.85ms` from London, GB
81.179.221.224	AS13285 TalkTalk Communications Limited	`3.86ms` from Manchester, GB
142.167.207.64	AS577 Bell Canada	`11.75ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 -m5 147.152.207.93

traceroute to 147.152.207.93 (147.152.207.93): 5 hops max, 52 byte packets

1 [AS15169] 142.251.50.125 17.72 ms

2 [AS2856] 109.159.253.190 26.762 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Berlin, DE

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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