CF1759875439469-tsm20251005211530

WWW.ROBTEX.COM - 2.21.129.in-addr.arpa

Search for IP or hostnames:

2.21.129.in-addr.arpa checked at 2025-10-07T22:17:19.452Z 87ms 87/87/87 100% R:12

2.21.129.in-addr.arpa

NSaccuvax.northwestern.edu
A2620:10d:2010:6011::100🇺🇸 Northwestern University
A129.105.49.100🇺🇸 Northwestern University
PTRaccuvax.northwestern.edu
NSns1a.rit.edu
A2620:8d:8000:0:aba:ca:daba:ee🇺🇸 Rochester Institute of Technology
PTRns1a.rit.edu
A129.21.1.82🇺🇸 Rochester Institute of Technology
PTRns1a.rit.edu
NSns2a.rit.edu
A2620:8d:8000:0:aba:ca:daba:ef🇺🇸 Rochester Institute of Technology
PTRns2a.rit.edu
A129.21.1.92🇺🇸 Rochester Institute of Technology
PTRns2a.rit.edu

21.129.in-addr.arpa

NSaccuvax.northwestern.edu
NSns1a.rit.edu
NSns2a.rit.edu

Up

Starts with same word

Starts similarily

AI analysis

2.21.129.in-addr.arpa is a parent of 251.2.21.129.in-addr.arpa, 62.2.21.129.in-addr.arpa, 30.2.21.129.in-addr.arpa, 93.2.21.129.in-addr.arpa, 38.2.21.129.in-addr.arpa and several other host names.

The delegation for 2.21.129.in-addr.arpa is handled by three name servers: accuvax.northwestern.edu, ns1a.rit.edu and ns2a.rit.edu.

2.21.129.in-addr.arpa at least partially shares name servers with other domains, for instance 78.74.199.in-addr.arpa, 167.249.199.in-addr.arpa, 89.124.165.in-addr.arpa, public.buffalo.edu and arttheory.northwestern.edu.

These name servers are often used together with cicada.northwestern.edu, dns01.buffalo.edu, dns02.buffalo.edu, dns03.buffalo.edu and dns04.buffalo.edu.

Two IP numbers per host:

accuvax.northwestern.edu points to 2620:10d:2010:6011::100 and 129.105.49.100.

ns1a.rit.edu points to 2620:8d:8000:0:aba:ca:daba:ee and 129.21.1.82.

ns2a.rit.edu points to 2620:8d:8000:0:aba:ca:daba:ef and 129.21.1.92.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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TLedWJy CF johedugfp 2025-10-07