comcast-universal-office.com - robtex.com
comcast-universal-office.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns.comcast-universal-office.com ⭐ | ||||||
| NS | dns101.comcast.net | ||||||
| A | 2001:558:fe23:8:69:252:250:103🇺🇸 AS332872001:558:fe23::/48 | ||||||
| PTR | dns101.comcast.net | ||||||
| A | 69.252.250.103🇺🇸 COMCAST-IBONE69.240.0.0/12 | ||||||
| PTR | dns101.comcast.net | ||||||
| NS | dns102.comcast.net | ||||||
| A | 2001:558:1004:7:68:87:85:132🇺🇸 COMCAST-IBONE2001:558::/29 | ||||||
| PTR | dns102.comcast.net | ||||||
| A | 68.87.85.132🇺🇸 COMCAST-IBONE68.80.0.0/13 | ||||||
| PTR | dns102.comcast.net | ||||||
| NS | dns103.comcast.net | ||||||
| A | 2001:558:1014:c:68:87:76:228🇺🇸 COMCAST-IBONE2001:558::/29 | ||||||
| PTR | dns103.comcast.net | ||||||
| A | 68.87.76.228🇺🇸 COMCAST-IBONE68.80.0.0/13 | ||||||
| PTR | dns103.comcast.net | ||||||
| NS | dns104.comcast.net | ||||||
| A | 2001:558:100a:5:68:87:68:244🇺🇸 AS77252001:558:100a::/48 | ||||||
| PTR | dns104.comcast.net | ||||||
| A | 68.87.68.244🇺🇸 COMCAST-IBONE68.80.0.0/13 | ||||||
| PTR | dns104.comcast.net | ||||||
| NS | dns105.comcast.net | ||||||
| A | 2001:558:100e:5:68:87:72:244🇺🇸 COMCAST-IBONE2001:558::/29 | ||||||
| PTR | dns105.comcast.net | ||||||
| A | 68.87.72.244COMCAST-IBONE68.80.0.0/13 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns.comcast-universal-office.comdnsmaster@comcastonline.com serial=2008073622 | ||||||
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.netnstld@verisign-grs.com serial=1774549637 | ||||||
Subdomains
ns.comcast-universal-office.com |
Same first word
comcast-universal-office.com |
comcast-universal-office.net |
DNS History
8 records (6 active, 2 former)
●NSdns101.comcast.net2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
●NSdns102.comcast.net2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
●NSdns103.comcast.net2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
●NSdns104.comcast.net2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
●NSdns105.comcast.net2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
●NSns.comcast-universal-office.com2015-08-21 → 2026-03-26 · 2 obs
● 2026-03-26 18:41:34
○A165.160.13.202015-08-21 → 2018-06-26 · 4 obs
● 2018-06-26 01:34:18
○ 2026-02-25 15:21:28
○ 2026-03-26 18:41:34
○A165.160.15.202015-08-21 → 2018-06-26 · 4 obs
● 2018-06-26 01:34:18
○ 2026-02-25 15:21:28
○ 2026-03-26 18:41:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| comcast-universal-office.com | dns101.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
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3753ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 5 | dns101.comcast.net, dns102.comcast.net... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns.comcast-universal-office.com dnsmaste |
Analysis
Hierarchy
comcast-universal-office.com is the parent of ns.comcast-universal-office.com.
Name Servers
comcast-universal-office.com is delegated to six name servers: ns.comcast-universal-office.com, dns101.comcast.net, dns102.comcast.net, dns103.comcast.net, dns104.comcast.net and dns105.comcast.net.
comcast-universal-office.com at least partially shares name servers with other domains, for instance 73.101.73.in-addr.arpa, 28.134.50.in-addr.arpa, dearbornhgts.mi.michigan.comcast.net, 242.234.98.in-addr.arpa and 56.224.98.in-addr.arpa.
these name servers are commonly used alongside mmhm.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