postmaster.comcast.net - dns.ninja
postmaster.comcast.net
| CNAME | spa.xfinity.com | ||||||
| CNAME | spa.apps.comcast.net | ||||||
| CNAME | spa.g.app.cloud.comcast.net | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 96.97.67.216🇺🇸 COMCAST-IBONE96.96.0.0/12 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | ||||||
comcast.net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 96.99.227.0🇺🇸 COMCAST-IBONE96.96.0.0/12 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | ||||||
| NS | dns101.comcast.net ⭐ | ||||||
| NS | dns102.comcast.net | ||||||
| NS | dns103.comcast.net | ||||||
| NS | dns104.comcast.net | ||||||
| NS | dns105.comcast.net | ||||||
| MX | mx1.mxge.comcast.net ⭐ | ||||||
| MX | mx2.mxge.comcast.net ⭐ | ||||||
| MX | mx1a1.comcast.net(50) | ||||||
| MX | mx1c1.comcast.net(50) | ||||||
| MX | mx1h1.comcast.net(50) | ||||||
| MX | mx2a1.comcast.net(50) | ||||||
| MX | mx2c1.comcast.net(50) | ||||||
| MX | mx2h1.comcast.net(50) | ||||||
| TXT | google-site-verification=g7KA0NF2z-1XIBz7vWW88zvVYlJeiG56UPOYHF2tqY0 | ||||||
| TXT | google-site-verification=gxiEHT6grgMJE52lhl4OYIt5Q3XpA5qt-8Okrxq-mcE | ||||||
| TXT | yahoo-verification-key=t0ftaXXV8MB1pon3jzauB3Fz5ezusB2l9jy3GVNPQRw= | ||||||
| TXT | v=spf1 ip4:96.103.146.48/28 ip4:96.102.19.32/28 ip4:96.102.200.0/28 include:_... | ||||||
| SOA | dns101.comcast.netdomregtech@comcastonline.com serial=2008265203 | ||||||
rank #1870 globally
rank #45 in the tld
comcast.net
comcast.net is a domain used by Comcast for email addresses and related services for its broadband customers, operated by Comcast Cable Communications, LLC.
Key facts
- Owner / operator: Comcast Cable Communications, LLC
- TLD:
.net— gTLD - Primary purpose: email service for Comcast broadband customers
- Status: active
Related domains
comcast.com– main corporate website
WOT: SAFE (92/100)
📈 Tranco rank: #207
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.
Same first word
Similar names
DNS History
8 records (1 active, 7 former)
○A162.150.4.1092015-05-30 → 2015-12-30 · 4 obs
● 2015-12-30 18:18:52
○ 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
○A2001:558:fc0b:0:f816:3eff:fef5:b8202015-10-17 → 2015-12-30 · 5 obs
● 2015-10-17 08:03:50
● 2015-12-30 18:18:52
○ 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
○A2001:558:fc0e:0:f816:3eff:fe5f:73592015-05-30 → 2015-12-30 · 4 obs
● 2015-12-30 18:18:52
○ 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
○A2001:558:fe21:401:f816:3eff:fe1e:4e922015-05-30 → 2016-04-06 · 3 obs
● 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
○A96.119.145.742015-10-17 → 2015-10-17 · 4 obs
● 2015-10-17 08:03:50
○ 2015-12-30 18:18:52
○ 2026-07-15 13:04:56
○A96.119.97.32016-04-06 → 2016-04-06 · 3 obs
● 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
○CNAMEpostmaster.g.comcast.net2015-05-30 → 2016-04-06 · 3 obs
● 2016-04-06 07:56:18
○ 2026-07-15 13:04:56
●CNAMEspa.xfinity.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 13:04:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| comcast.net | dns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net... | 10 records |
✅ Authoritative Response
Server:68.87.85.132
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: 184ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | spa.xfinity.com |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (dns101.comcast.net, dns101.comcast.net, dns102.comcast.net...)
Analysis
IP Addresses
postmaster.comcast.net resolves to just one IP address, 96.97.67.216.
partners-site-ui.gslb2.comcast.com, search4e.g.app.cloud.comcast.net and internetsecurity.g.app.cloud.comcast.net are examples of other host names that share IP numbers with postmaster.comcast.net.