cmc-comcast.net - robtex.com

cmc-comcast.net

DNSSEC⚠️ Not signed
A12.41.71.233🇺🇸 AS701812.0.0.0/9 12/8 lower half
PTRcmc-comcast.com
PTRndtc-att.com
PTRcmc-comcast.net
PTRcmc-ext-web-prod-vip.comcastmediacenter.com
NSns.cmc-comcast.net ⭐
NSdns101.comcast.net
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
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
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
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
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
SOAns.cmc-comcast.netdnsmaster@comcastonline.com serial=2008073597

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774879942

PTR for

233.71.41.12.in-addr.arpa

Subdomains

digi7.cmc-comcast.net
digi11.cmc-comcast.net
digi1.cmc-comcast.net
digi3.cmc-comcast.net
digi6.cmc-comcast.net
digi4.cmc-comcast.net
globalnat172.cmc-comcast.net
digi10.cmc-comcast.net
digi2.cmc-comcast.net
digi9.cmc-comcast.net
digi5.cmc-comcast.net
digi8.cmc-comcast.net
digi12.cmc-comcast.net

Same first word

cmc-comcast.com
cmc-comcast.net

DNS History

9 records (7 active, 2 former)

2008201020122014201620182020202220242026NSdns101.comcast.netdns102.comcast.netdns103.comcast.netdns104.comcast.netdns105.comcast.netns.cmc-comcast.netns-secondary.comcastmediacenter.comns.comcastmediacenter.comA12.41.71.233
●NSdns101.comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
●NSdns102.comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
●NSdns103.comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
●NSdns104.comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
●NSdns105.comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
○NSns-secondary.comcastmediacenter.com2007-09-20 → 2007-09-20 · 3 obs
● 2007-09-20 10:09:24
○ 2015-06-24 19:39:56
○ 2026-03-30 14:27:40
●NSns.cmc-comcast.net2015-06-24 → 2026-03-30 · 3 obs
○ 2007-09-20 10:09:24
● 2015-06-24 19:39:56
● 2026-03-30 14:27:40
○NSns.comcastmediacenter.com2007-09-20 → 2007-09-20 · 3 obs
● 2007-09-20 10:09:24
○ 2015-06-24 19:39:56
○ 2026-03-30 14:27:40
●A12.41.71.2332007-09-20 → 2026-03-30 · 2 obs
● 2007-09-20 10:09:24
● 2026-03-30 14:27:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netf.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...-
cmc-comcast.netdns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net...10 records

✅ Authoritative Response

Server:68.87.76.228

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

TypeCountSample Data
A112.41.71.233
NS5dns103.comcast.net, dns105.comcast.net...
SOA1ns.cmc-comcast.net dnsmaster.comcastonli

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (dns101.comcast.net, dns101.comcast.net, dns102.comcast.net...)

Analysis

Hierarchy

cmc-comcast.net is a parent of digi7.cmc-comcast.net, digi11.cmc-comcast.net, digi1.cmc-comcast.net, digi3.cmc-comcast.net, digi6.cmc-comcast.net and a few other host names.

IP Addresses

cmc-comcast.net resolves to a single IP address: 12.41.71.233.

Other host names such as cmc-comcast.com, cmc-ext-web-prod-vip.comcastmediacenter.com and ndtc-att.com share IP numbers with cmc-comcast.net.

Name Servers

cmc-comcast.net is delegated to six name servers: ns.cmc-comcast.net, dns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net and dns105.comcast.net.

cmc-comcast.net at least partially shares name servers with other domains, including 95.86.68.in-addr.arpa, 61.238.73.in-addr.arpa, 134.142.76.in-addr.arpa, 70.204.98.in-addr.arpa and 43.232.50.in-addr.arpa.

These name servers are commonly used with dns101.comcast.org and dns101.comcast.net.bad.comcast.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.