ca.comcast.net - robtex.com

ca.comcast.net

DNSSEC⚠️ Not signed
NSdns101.comcast.net.ca.comcast.net ⭐
NSdns101.comcast.net ⚠️ Not in parent delegation
A2001:558:fe23:8:69:252:250:103🇺🇸 AS332872001:558:fe23::/48
PTRdns101.comcast.net
A69.252.250.103🇺🇸 COMCAST-IBONE69.240.0.0/12 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns101.comcast.net
NSdns102.comcast.net ⚠️ Not in parent delegation
A2001:558:1004:7:68:87:85:132🇺🇸 COMCAST-IBONE2001:558::/29 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns102.comcast.net
A68.87.85.132🇺🇸 COMCAST-IBONE68.80.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns102.comcast.net
NSdns103.comcast.net ⚠️ Not in parent delegation
A2001:558:1014:c:68:87:76:228🇺🇸 COMCAST-IBONE2001:558::/29 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns103.comcast.net
A68.87.76.228🇺🇸 COMCAST-IBONE68.80.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns103.comcast.net
NSdns104.comcast.net ⚠️ Not in parent delegation
A2001:558:100a:5:68:87:68:244🇺🇸 AS77252001:558:100a::/48
PTRdns104.comcast.net
A68.87.68.244🇺🇸 COMCAST-IBONE68.80.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns104.comcast.net
NSdns105.comcast.net ⚠️ Not in parent delegation
A2001:558:100e:5:68:87:72:244🇺🇸 COMCAST-IBONE2001:558::/29 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns105.comcast.net
A68.87.72.244🇺🇸 COMCAST-IBONE68.80.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRdns105.comcast.net
SOAdns101.comcast.net.ca.comcast.nethostmaster@comcast.com.ca.comcast.net 2017-11-09 #41

comcast.net

DNSSEC🔒 Signed (DS record present)
A96.99.227.0🇺🇸 COMCAST-IBONE96.96.0.0/12 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
NSdns101.comcast.net ⭐
NSdns102.comcast.net
NSdns103.comcast.net
NSdns104.comcast.net
NSdns105.comcast.net
MXmx1.mxge.comcast.net ⭐
MXmx2.mxge.comcast.net ⭐
MXmx1a1.comcast.net(50)
MXmx1c1.comcast.net(50)
MXmx1h1.comcast.net(50)
MXmx2a1.comcast.net(50)
MXmx2c1.comcast.net(50)
MXmx2h1.comcast.net(50)
TXTv=spf1 ip4:96.103.146.48/28 ip4:96.102.19.32/28 ip4:96.102.200.0/28 include:_...
TXTgoogle-site-verification=g7KA0NF2z-1XIBz7vWW88zvVYlJeiG56UPOYHF2tqY0
TXTgoogle-site-verification=gxiEHT6grgMJE52lhl4OYIt5Q3XpA5qt-8Okrxq-mcE
TXTyahoo-verification-key=t0ftaXXV8MB1pon3jzauB3Fz5ezusB2l9jy3GVNPQRw=
SOAdns101.comcast.netdomregtech@comcastonline.com serial=2008258908
WOT: SAFE (41/100)
rank #1816 globally
rank #46 in the tld
This domain name "comcast.net" is associated with Comcast Corporation, a telecommunications conglomerate based in the United States. It is utilized for their online services, which include email, news, entertainment, and other web content. Comcast customers often have associated email addresses that end in "comcast.net".WOT: SAFE (92/100)
📈 Tranco rank: #240
comcast.net - Tranco Rank (30d: ↓-16)215220230240250260262Feb 22Mar 3Mar 12Mar 21Mar 30Apr 1Rank#224#240

Comcast Corporation

comcast.net is the primary domain for Comcast Corporation, an American multinational telecommunications and entertainment conglomerate headquartered in Philadelphia, Pennsylvania. Founded in 1963 by Ralph J. Roberts as a small cable system in Tupelo, Mississippi, the company has grown to become the largest home Internet service provider and second-largest cable TV company by subscribers in the United States. The name "Comcast" is a portmanteau of "Communications" and "Broadcast."

Key Services & Brands

  • Xfinity — Residential cable, internet, and home phone services
  • Xfinity Mobile — Mobile wireless service (MVNO on Verizon's network)
  • Comcast Business — Commercial internet, phone, and TV for businesses
  • NBCUniversal — Major entertainment division including NBC, Universal Pictures, and cable networks (CNBC, MSNBC, USA, Bravo, Syfy)
  • Sky — European media and telecommunications (acquired 2018)

Notable Acquisitions

The company has expanded through major acquisitions including NBCUniversal (2011), DreamWorks Animation (2016), and Sky Group (2018). Comcast is ranked as the fourth-largest telecommunications company worldwide by revenue.

DNS Infrastructure

Comcast operates its own authoritative DNS infrastructure with five nameservers (dns101-105.comcast.net), all with dual-stack IPv4/IPv6 support. The domain is protected by DNSSEC. Mail is handled by multiple MX servers under the mxge.comcast.net subdomain. The primary IP (96.99.227.0) is announced from AS7922 (COMCAST-IBONE). The domain ranks #254 on Tranco, reflecting its massive user base accessing webmail and account services.

Subdomains

sjos5.ca.comcast.net
sjos4.ca.comcast.net
sjos6.ca.comcast.net
sjos9.ca.comcast.net
hsd1.ca.comcast.net
sjos1.ca.comcast.net
snjs.ca.comcast.net
sjos7.ca.comcast.net
sjos2.ca.comcast.net
sjos3.ca.comcast.net

Same first word

ca.gov.vn
ca.debian.net
ca.uz
ca.eu.org
ca.gg
ca.com.sg
ca.land
ca.com
ca.com.au
ca.net.au
ca.co.th
ca.su
ca.tel
ca.support
ca.fyi
ca.ms
ca.hu
ca.my
ca.inf.br
ca.cloudns.us
ca.ie
ca.lt
ca.com.lb
ca.bz.it
ca.ag
ca.sk
ca.global.prod.fastly.net
ca.company
ca.vodka
ca.gs
ca.s3-website.ca-central-1.amazonaws.com
ca
ca.la
ca.sh
ca.cc
ca.vin
ca.am
ca.biz
ca.pt
ca.vc
ca.us.com
ca.com.br
ca.marketing
ca.s3.amazonaws.com
ca.co
ca.uk
ca.digital
ca.net.co
ca.cl
ca.cm
ca.life
ca.ma
ca.new
ca.gouv.fr
ca.com.tr
ca.com.tw
ca.ac.za
ca.zone
ca.s3-website-us-west-1.amazonaws.com
ca.gov
ca.gy
ca.com.qa
ca.dk
ca.in-berlin.de
ca.gov.ar
ca.gov.mo
ca.pl
ca.cn
ca.builders
ca.go.ke
ca.ac.kr
ca.s3-website-us-west-2.amazonaws.com
ca.k12.pa.us
ca.esq
ca.se
ca.edu
ca.akamai.net
ca.today
ca.media
ca.condos
ca.gov.bm
ca.run
ca.dev
ca.kz
ca.statebank
ca.nu
ca.sg
ca.gp
ca.ws
ca.com.se
ca.vu
ca.tv
ca.guru
ca.akamaiedge.net
ca.exchange
ca.s3-website-us-east-1.amazonaws.com
ca.net
ca.gov.sa
ca.co.za
ca.gob.ar
ca.xyz
ca.s3-us-west-2.amazonaws.com
ca.by
ca.freetls.fastly.net
ca.surf
ca.ph
ca.s3-website.us-east-2.amazonaws.com
ca.nl
ca.pe.it
ca.abbott
ca.tc
ca.tf
ca.org
ca.ac
ca.io
ca.uy
ca.cx
ca.cz
ca.world
ca.ru
ca.be
ca.no
ca.taxi
ca.de
ca.or.kr
ca.trafficmanager.net
ca.to
ca.mg.gov.br

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ac.pa
ac.bialystok.pl
ac.lv
ac.rs
ac.com.ru
ac.gg
ac.education
ac.com.tr
ac.wtf
ac.markets
ac.tc
ac.vn
ac.capital
ac.gl
ac.contractors
ac.pr
ac.co.kr
ac.ge
ac.ms
ac.is
ac.th
ac.com.my
ac.tools
ac.net
ac.nz
ac.ac
ac.dk
ac.milan.it
ac.uk
ac.zw
ac.ni
ac.s3.amazonaws.com
ac.gen.tr
ac.kalisz.pl
ac.ee
ac.com.do
ac.uy
ac.cab
ac.at
ac.nl
ac.ir
ac.net.au
ac.mu
ac.ly
ac.ph
ac.services
ac.co.zw
ac.health
ac.dj
ac.ai
ac.investments
ac.id
ac.sc
ac.me
ac.co
ac.edu.au
ac.cy
ac.mz
ac.com.pl
ac.kharkov.ua
ac.co.il
ac.mn
ac.in.ua
ac.edgekey.net
ac.company
ac.in
ac.gov.ru
ac.ma

DNS History

6 records (6 active, 0 former)

20192020202120222023202420252026NSdns101.comcast.netdns101.comcast.net.ca.comcast.netdns102.comcast.netdns103.comcast.netdns104.comcast.netdns105.comcast.net
●NSdns101.comcast.net2019-06-04 → 2026-04-03 · 3 obs
○ 2018-08-14 04:38:34
● 2019-06-04 17:01:26
● 2026-04-03 17:13:34
●NSdns101.comcast.net.ca.comcast.net2018-08-14 → 2026-04-03 · 2 obs
● 2018-08-14 04:38:34
● 2026-04-03 17:13:34
●NSdns102.comcast.net2019-06-04 → 2026-04-03 · 3 obs
○ 2018-08-14 04:38:34
● 2019-06-04 17:01:26
● 2026-04-03 17:13:34
●NSdns103.comcast.net2019-06-04 → 2026-04-03 · 3 obs
○ 2018-08-14 04:38:34
● 2019-06-04 17:01:26
● 2026-04-03 17:13:34
●NSdns104.comcast.net2019-06-04 → 2026-04-03 · 3 obs
○ 2018-08-14 04:38:34
● 2019-06-04 17:01:26
● 2026-04-03 17:13:34
●NSdns105.comcast.net2019-06-04 → 2026-04-03 · 3 obs
○ 2018-08-14 04:38:34
● 2019-06-04 17:01:26
● 2026-04-03 17:13:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comcast.netdns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net...-

✅ Authoritative Response

Server:68.87.68.244

NS records: dns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net, dns105.comcast.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for comcast.net (unsigned zone)

⏱️ Timing

Total: 137ms | Queries: -

📄 Records

TypeCountSample Data
NS5dns103.comcast.net, dns104.comcast.net...
SOA1dns101.comcast.net.ca.comcast.net hostma

Analysis

Hierarchy

ca.comcast.net is a parent of sjos5.ca.comcast.net, sjos4.ca.comcast.net, sjos6.ca.comcast.net, sjos9.ca.comcast.net and hsd1.ca.comcast.net, plus a few other host names.

Name Servers

ca.comcast.net delegates to six name servers: dns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net, dns105.comcast.net and dns101.comcast.net.ca.comcast.net.

ca.comcast.net shares name servers with other domains at least partially, for instance 112.142.76.in-addr.arpa, 67.238.50.in-addr.arpa, 124.225.50.in-addr.arpa, 93.99.73.in-addr.arpa and b.1.0.0.6.2.e.f.8.5.5.0.1.0.0.2.ip6.arpa.

these name servers are commonly used together with ns1.comcastbusiness.net and ns2.comcastbusiness.net.

Host names with two IP numbers:

dns101.comcast.net points to 2001:558:fe23:8:69:252:250:103 and 69.252.250.103.

dns102.comcast.net points to 2001:558:1004:7:68:87:85:132 and 68.87.85.132.

dns103.comcast.net points to 2001:558:1014:c:68:87:76:228 and 68.87.76.228.

dns104.comcast.net points to 2001:558:100a:5:68:87:68:244 and 68.87.68.244.

dns105.comcast.net points to 2001:558:100e:5:68:87:72:244 and 68.87.72.244.