`o2.com`

DNSSEC	⚠️ Not signed
A	20.162.150.90^{🇬🇧 Microsoft20.160.0.0/12 MICROSOFT}
NS	`n1.02.net` ⭐
		A	82.132.128.98^{🇬🇧 O2-ONLINE-AS82.132.128.0/22 O2 Online (UK)}
			PTR	`cornelius.london.02.net`
NS	`n2.02.net`
		A	82.132.128.106^{🇬🇧 O2-ONLINE-AS82.132.128.0/22 O2 Online (UK)}
			PTR	`laura.london.02.net`
NS	`n3.02.net`
		A	82.132.128.114^{🇬🇧 O2-ONLINE-AS82.132.128.0/22 O2 Online (UK)}
			PTR	`amaia.london.02.net`
NS	`n4.02.net`
		A	82.132.128.122^{🇬🇧 O2-ONLINE-AS82.132.128.0/22 O2 Online (UK)}
			PTR	`sonya.london.02.net`
MX	`dmell-seg-03.o2.com` ⭐
		A	158.230.201.10^{🇬🇧 O2BROADBAND158.230.201.0/24}
			PTR	`dmell-seg-03.o2.com`
MX	`dmell-seg-04.o2.com` ⭐
		A	158.230.201.11^{🇬🇧 O2BROADBAND158.230.201.0/24}
			PTR	`dmell-seg-04.o2.com`
MX	`dmmlw-seg-01.o2.com` ⭐
		A	158.230.101.187^{🇬🇧 O2BROADBAND158.230.0.0/17}
			PTR	`dmmlw-seg-01.o2.com`
MX	`dmmlw-seg-02.o2.com` ⭐
		A	158.230.101.188^{🇬🇧 O2BROADBAND158.230.0.0/17}
			PTR	`dmmlw-seg-02.o2.com`
TXT	`MS=ms84289480`
TXT	`v=spf1 ip4:158.230.101.102 ip4:192.228.1.9 ip4:194.228.112.214 ip4:82.113.113...`
TXT	`google-site-verification=BA6qs9P2zvz7VSFPqiEWhUBVoSQq47e-Muke9TCzppg`
TXT	`MS=ms26678149`
TXT	`_1jzrjxjeekt3ndyz4c32ob1dy21d5wz`
TXT	`ppwx41bz7jkjhtj4053w74tnvmrvbwqx`
TXT	`eb3883f0394c40228aaa1758e165696d`
SOA	`n1.02.net`hostmaster@02.net 2026-04-22 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776943917

rank #213544 globally
rank #87761 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #62,419

PTR for

35.208.159.213.in-addr.arpa

Subdomains

vendor-auth.o2.com

dmell-seg-03.o2.com

cz.o2.com

outlook.o2.com

seal.o2.com

inmsweb.o2.com

mms2.o2.com

ukdmzisacls-1.o2.com

rag-partner.o2.com

legacy.o2.com

cwa.o2.com

mr.o2.com

lync.o2.com

webmail.o2.com

ap.o2.com

ap-int.o2.com

share.o2.com

dmmlw-seg-02.o2.com

mail2.o2.com

mail.o2.com

dmmlw-seg-01.o2.com

ukdmzcsg.o2.com

dmell-seg-04.o2.com

owa.o2.com

webmap-vip.o2.com

www.o2.com

csweb.o2.com

ukcag.o2.com

conf.o2.com

autodiscover.o2.com

account.o2.com

de.o2.com

mdcomms20.o2.com

sk.o2.com

push.o2.com

Same first word

o2.ie

o2.net

o2.ma

o2.lol

o2.capital

o2.hr

o2.app

o2.com.hk

o2.eu

o2.tv

o2.net.pl

o2.uk

o2.team

o2.cc

o2.co.za

o2.se

o2.net.kg

o2.ee

o2.fitness

o2.guru

o2.cz

o2.edu.vn

o2.ag

o2.fr

o2.co.kr

o2.rs

o2.net.br

o2.dev

o2.art.br

o2.net.ru

o2.ru

o2.co

o2.kiev.ua

o2.si

o2.sg

o2.business

o2.com.mx

o2.ro

o2.no

o2.com.es

o2.de

o2.com.au

o2.lk

o2.kz

o2.com.br

o2.la

o2.support

o2.church

o2.agency

o2.ua

o2.ventures

o2.at

o2.su

o2.io

o2.sk

o2.biz

o2.com

o2.com.tr

o2.nl

o2.bio

o2.by

o2.co.uk

o2.kg

o2.pro

o2.org

o2.com.pl

o2.ca

o2.nu

o2.to

o2.academy

o2.ae

o2.click

o2.events

o2.hu

o2.com.py

o2.pl

Similar names

2o.at

2o.si

2o.co

2o.cx

2o.de

2o.su

2o.hu

2o.no

2o.cl

2o.nl

2o.dk

2o.hk

2o.house

2o.pl

2o.org

2o.cz

2o.be

2o.ca

2o.com

2o.cn

2o.fr

2o.cc

2o.net

DNS History

17 records (9 active, 8 former)

○NSdns0.02.net2015-08-25 → 2017-06-20 · 4 obs

● 2015-08-25 12:40:58
● 2017-06-20 14:48:26
○ 2017-07-25 23:29:50
○ 2026-04-23 11:41:02

○NSdns1.02.net2015-08-25 → 2017-06-20 · 4 obs

● 2015-08-25 12:40:58
● 2017-06-20 14:48:26
○ 2017-07-25 23:29:50
○ 2026-04-23 11:41:02

○NSdns2.02.net2015-08-25 → 2018-05-09 · 4 obs

● 2015-08-25 12:40:58
● 2018-05-09 16:44:44
○ 2018-06-14 07:49:52
○ 2026-04-23 11:41:02

○NSdns3.02.net2015-08-25 → 2018-05-09 · 4 obs

● 2015-08-25 12:40:58
● 2018-05-09 16:44:44
○ 2018-06-14 07:49:52
○ 2026-04-23 11:41:02

●NSn1.02.net2017-07-25 → 2026-04-23 · 3 obs

○ 2017-06-20 14:48:26
● 2017-07-25 23:29:50
● 2026-04-23 11:41:02

●NSn2.02.net2018-06-14 → 2026-04-23 · 3 obs

○ 2018-05-09 16:44:44
● 2018-06-14 07:49:52
● 2026-04-23 11:41:02

●NSn3.02.net2017-07-25 → 2026-04-23 · 3 obs

○ 2017-06-20 14:48:26
● 2017-07-25 23:29:50
● 2026-04-23 11:41:02

●NSn4.02.net2018-06-14 → 2026-04-23 · 3 obs

○ 2018-05-09 16:44:44
● 2018-06-14 07:49:52
● 2026-04-23 11:41:02

○MXcust1445-1.in.mailcontrol.com2015-08-25 → 2016-02-10 · 4 obs

● 2015-08-25 12:40:58
● 2016-02-10 02:17:42
○ 2016-03-03 20:38:46
○ 2026-04-23 11:41:02

○MXcust1445-2.in.mailcontrol.com2015-08-25 → 2016-02-10 · 4 obs

● 2015-08-25 12:40:58
● 2016-02-10 02:17:42
○ 2016-03-03 20:38:46
○ 2026-04-23 11:41:02

●MXdmell-seg-03.o2.com2016-05-24 → 2026-04-23 · 3 obs

○ 2016-03-03 20:38:46
● 2016-05-24 21:52:20
● 2026-04-23 11:41:02

●MXdmell-seg-04.o2.com2016-05-24 → 2026-04-23 · 3 obs

○ 2016-03-03 20:38:46
● 2016-05-24 21:52:20
● 2026-04-23 11:41:02

●MXdmmlw-seg-01.o2.com2016-02-06 → 2026-04-23 · 3 obs

○ 2015-08-25 12:40:58
● 2016-02-06 09:05:08
● 2026-04-23 11:41:02

●MXdmmlw-seg-02.o2.com2016-02-06 → 2026-04-23 · 3 obs

○ 2015-08-25 12:40:58
● 2016-02-06 09:05:08
● 2026-04-23 11:41:02

●A20.162.150.902026-02-15 → 2026-04-23 · 3 obs

○ 2022-01-02 12:46:46
● 2026-02-15 08:10:30
● 2026-04-23 11:41:02

○A51.104.149.902021-03-05 → 2022-01-02 · 5 obs

○ 2020-10-16 08:21:02
● 2021-03-05 21:42:16
● 2022-01-02 12:46:46
○ 2026-02-15 08:10:30
○ 2026-04-23 11:41:02

○A83.231.179.172015-08-25 → 2020-10-16 · 4 obs

● 2015-08-25 12:40:58
● 2020-10-16 08:21:02
○ 2021-03-05 21:42:16
○ 2026-04-23 11:41:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
o2.com	n1.02.net, n2.02.net, n3.02.net, n4.02.net	-

✅ Authoritative Response

Server:82.132.128.114

NS records: n1.02.net, n2.02.net, n3.02.net, n4.02.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o2.com (unsigned zone)

⏱️ Timing

Total: 726ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`20.162.150.90`
NS	4	`n3.02.net, n4.02.net...`
MX	4	`dmmlw-seg-01.o2.com (pri: 10), dmmlw-seg-02.o2.com (pri: 10)...`
TXT	7	`_1jzrjxjeekt3ndyz4c32ob1dy21d5wz, ppwx41bz7jkjhtj4053w74tnvmrvbwqx...`
SOA	1	`n1.02.net hostmaster.02.net`

Analysis

Hierarchy

o2.com is the parent of vendor-auth.o2.com, dmell-seg-03.o2.com, cz.o2.com, outlook.o2.com, seal.o2.com and a few other host names.

IP Addresses

o2.com points to an IP address: 20.162.150.90.

other host names, for instance www.o2.com, o2.co.uk, o2recycle.co.uk and 02.co.uk share IP numbers with o2.com.

Name Servers

o2.com delegates to four name servers: n1.02.net, n2.02.net, n3.02.net and n4.02.net.

o2.com at least partially shares name servers with other domains, for instance o2chargybargy.co.uk, o2businesstext.co.uk, 237.132.82.in-addr.arpa, o2learn.co.uk and o2-card.com.

Host names with one IP number: n1.02.net points to: 82.132.128.98; n2.02.net points to: 82.132.128.106; n3.02.net points to: 82.132.128.114; n4.02.net points to: 82.132.128.122.

Mail Servers

o2.com is handled by four mail servers: dmell-seg-03.o2.com, dmell-seg-04.o2.com, dmmlw-seg-01.o2.com and dmmlw-seg-02.o2.com.

o2.com shares at least partially some mail servers with other domains, for instance o2broadband.co.uk, o2academy.co.uk, beunlimited.co.uk, o2mail.co.uk and weve.com.

Host names with one IP number: dmell-seg-03.o2.com points to: 158.230.201.10; dmell-seg-04.o2.com points to: 158.230.201.11; dmmlw-seg-01.o2.com points to: 158.230.101.187; dmmlw-seg-02.o2.com points to: 158.230.101.188.

o2.com - robtex.com

o2.com

com