138.104.231.0/24

AS6421 · TATA COMMUNICATIONS (AMERICA) INC

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Summary

Country	United Kingdom
Domain	mottmac.com
ASN	AS6421
Registry	RIPE
ID	MOTTMAC

WHOIS Details

inetnum:        138.104.0.0 - 138.104.255.255
status:         LEGACY
remarks:        This inetnum has been transfered as part of the ERX.
remarks:        It was present in both the ARIN and RIPE databases, so
remarks:        the information from both databases has been merged.
netname:        MOTTMAC
descr:          Mott MacDonald
country:        GB
admin-c:        RJ1652-RIPE
admin-c:        BT270-RIPE
tech-c:         RJ1652-RIPE
tech-c:         BT270-RIPE
mnt-by:         MOTTMAC-UK-MNT
mnt-by:         PSINET-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2019-12-04T13:04:17Z
source:         RIPE

person:         Bradley Tullett
address:        St Anne House
address:        20-26 Wellesley Road
address:        Croydon
address:        CR9 2UL
address:        UK
phone:          +44 181 686 5041
fax-no:         +44 181 681 5706
e-mail:         bradley.tullett@mottmac.com
nic-hdl:        BT270-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2016-04-05T15:21:33Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE

person:         Raj Jotangiya
address:        Mott MacDonald
address:        Meridian House
address:        11 Wellesley Road
address:        Croydon
address:        Surrey
address:        CR0 2NW
phone:          +44 (0)208 774 2754
mnt-by:         MOTTMAC-UK-MNT
nic-hdl:        RJ1652-RIPE
created:        2009-10-02T13:29:51Z
last-modified:  2009-10-02T14:07:20Z
source:         RIPE

route:          138.104.0.0/16
descr:          MOTTMAC-ROUTE
origin:         AS1290
mnt-by:         PSINET-MNT
mnt-by:         EASYNET-UK-MNT
mnt-by:         EASYNET-MNT
mnt-by:         AS8297-MNT
created:        2012-09-03T10:49:37Z
last-modified:  2013-07-24T10:46:33Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 138.104.0.0/16

Range	ASN	Company	Num of IPs
138.104.228.0/24	AS4755	Mott MacDonald CROYDON	256
138.104.230.0/24	AS6421	Mott MacDonald	256
138.104.226.0/24	AS6453	Mott MacDonald CROYDON	256
138.104.227.0/24	AS6453	Mott MacDonald CROYDON	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
138.104.231.250	AS6421 TATA COMMUNICATIONS (AMERICA) INC	`1.36ms` from Singapore, SG

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
164.191.77.200	AS668 United States Department of Defense (DoD)	`0.51ms` from Atlanta, US
47.72.245.248	AS9500 One New Zealand Group Limited	`6.67ms` from Christchurch, NZ
90.203.146.88	AS5607 Sky UK Limited	`5.20ms` from Erith, GB
217.81.220.104	AS3320 Deutsche Telekom AG	`8.41ms` from Frankfurt am Main, DE
119.41.214.248	AS4134 CHINANET-BACKBONE	`2.63ms` from Haikou, CN
62.172.160.168	AS2856 British Telecommunications PLC	`1.08ms` from London, GB
76.169.143.104	AS20001 Charter Communications Inc	`5.65ms` from Los Angeles, US
76.108.56.72	AS7922 Comcast Cable Communications, LLC	`6.68ms` from Miami, US
134.224.131.168	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
143.198.166.200	AS14061 DigitalOcean, LLC	`0.23ms` from New York City, US
46.21.48.232	AS8544 Primetel PLC	`2.43ms` from Nicosia, CY
168.87.182.200	AS16509 Amazon.com, Inc.	`0.14ms` from San Jose, US
177.34.215.216	AS28573 Claro NXT Telecomunicacoes Ltda	`7.67ms` from Sao Paulo, BR
116.46.191.104	AS17858 LG POWERCOMM	`2.11ms` from Seoul, KR
60.120.130.152	AS17676 SoftBank Corp.	`3.01ms` from Tokyo, JP
126.9.123.184	AS17676 SoftBank Corp.	`2.96ms` from Tokyo, JP
163.75.75.104	AS36351 IBM Cloud	`0.83ms` from Toronto, CA
40.88.136.88	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
97.243.177.200	AS6167 Verizon Business	`13.23ms` from Chicago, US
182.43.75.152	AS58519 Cloud Computing Corporation	`0.47ms` from Guiyang, CN
172.250.177.248	AS20001 Charter Communications Inc	`3.88ms` from Los Angeles, US
142.169.197.24	AS852 TELUS Communications Inc.	`4.59ms` from Montreal, CA
23.62.123.24	AS16625 Akamai Technologies, Inc.	`0.88ms` from New York City, US
47.54.10.56	AS855 Bell Canada	`18.21ms` from New York City, US
60.128.152.232	AS17676 SoftBank Corp.	`3.58ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 138.104.231.250

traceroute to 138.104.231.250 (138.104.231.250): 64 hops max, 52 byte packets

4 [AS63949] 139.162.0.101 0.596 ms

5 [AS63949] 139.162.0.18 0.497 ms

6 [] 103.16.102.58 8.453 ms

7 [AS6421] 180.87.140.94 1.647 ms

8 [AS6421] 138.104.231.250 1.549 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On December 28th 2025

What are IP address ranges?

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