cisco.llc - robtex.com

cisco.llc

DNSSEC⚠️ Not signed
NSns1.cisco.com ⚠️ Not in zone NS records
A2001:420:1101:6::a🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States
PTRns1.cisco.com
A72.163.5.201🇺🇸 ASNTTCISCO72.163.0.0/18 170 West Tasman Drive San Jose CA 95134 United States
PTRns1.cisco.com
NSns2.cisco.com ⚠️ Not in zone NS records
A2001:420:2041:5000::a🇺🇸 ASNTTCISCO2001:420:2000::/35 170 West Tasman Drive San Jose CA 95134 United States
PTRns2.cisco.com
A64.102.255.44🇺🇸 ASNTTCISCO64.102.0.0/16 170 West Tasman Drive San Jose CA 95134 United States
PTRns2.cisco.com
NSns3.cisco.com ⚠️ Not in zone NS records
A2001:420:1201:7::a🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States
PTRns3.cisco.com
A173.37.146.41🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States
PTRns3.cisco.com

llc

DNSSEC🔒 Signed (DS record present)
NSa0.nic.llc
NSa2.nic.llc
NSb0.nic.llc
NSc0.nic.llc
SOAa0.nic.llchostmaster@donuts.email serial=1782040907

Same first word

Similar names

DNS History

3 records (3 active, 0 former)

NSns1.cisco.comns2.cisco.comns3.cisco.com
NSns1.cisco.com2026-05-25 → 2026-06-21 · 2 obs
● 2026-05-25 06:26:00
● 2026-06-21 11:27:22
NSns2.cisco.com2026-05-25 → 2026-06-21 · 2 obs
● 2026-05-25 06:26:00
● 2026-06-21 11:27:22
NSns3.cisco.com2026-05-25 → 2026-06-21 · 2 obs
● 2026-05-25 06:26:00
● 2026-06-21 11:27:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
llca0.nic.llc, a2.nic.llc, b0.nic.llc, c0.nic.llc8 records
cisco.llcns1.cisco.com, ns2.cisco.com, ns3.cisco.com-

✅ Authoritative Response

Server:64.102.255.44

NS records: ns1.cisco.com, ns2.cisco.com, ns3.cisco.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cisco.llc (unsigned zone)

⏱️ Timing

Total: 941ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.llc, a0.nic.llc, a2.nic.llc...)

Analysis

Name Servers

cisco.llc has three name servers — ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.

cisco.llc partially shares its NS delegation with several other domains, including ciscoprisma.biz, webexshare.com.cn, clouddatacommander.com and two others.

Each of ns1.cisco.com, ns2.cisco.com and ns3.cisco.com points to two IP numbers. ns1.cisco.com points to 72.163.5.201 and 2001:420:1101:6::a. ns2.cisco.com points to 64.102.255.44 and 2001:420:2041:5000::a. ns3.cisco.com points to 173.37.146.41 and 2001:420:1201:7::a.