koho.ac.jp - robtex.com

koho.ac.jp

DNSSEC⚠️ Not signed
A153.127.70.37🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRik1-433-48533.vs.sakura.ne.jp
NSdns0.tam.ne.jp ⭐
A210.133.160.7🇯🇵 TAM210.133.160.0/19 CIDR BLOCK 1 3146-1, Hirono, Kamiichi-machi, Nakaniikawa-gun, Toyama, 930-0412 Japan
PTRseri.tam.ne.jp
NSdns1.tam.ne.jp
A210.133.161.249🇯🇵 TAM210.133.160.0/19 CIDR BLOCK 1 3146-1, Hirono, Kamiichi-machi, Nakaniikawa-gun, Toyama, 930-0412 Japan
PTRdns1.tam.ne.jp
NSdns2.tam.ne.jp
A210.133.161.245🇯🇵 TAM210.133.160.0/19 CIDR BLOCK 1 3146-1, Hirono, Kamiichi-machi, Nakaniikawa-gun, Toyama, 930-0412 Japan
PTRdns2.tam.ne.jp
MXsv1.koho.ac.jp ⭐
A153.127.70.37🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRik1-433-48533.vs.sakura.ne.jp
TXTv=spf1 ip4:153.127.70.37 ~all
SOAdns0.tam.ne.jppostmaster@tam.ne.jp serial=202509250

ac.jp

DNSSEC⚠️ Not signed
TXTac.jp.
WOT: SAFE (61/100)
WOT: SAFE (80/100)

Subdomains

sv1.koho.ac.jp

Same first word

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koho.ca
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koho.cloud
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koho.info
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Similar names

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hoko.ir

DNS History

7 records (5 active, 2 former)

20162017201820192020202120222023202420252026NSdns0.tam.ne.jpdns1.tam.ne.jpdns2.tam.ne.jpnewton.tam.ne.jppythagoras.tam.ne.jpMXsv1.koho.ac.jpA153.127.70.37
●NSdns0.tam.ne.jp2017-01-22 → 2026-07-29 · 3 obs
○ 2016-03-29 11:39:26
● 2017-01-22 15:03:00
● 2026-07-29 07:24:20
●NSdns1.tam.ne.jp2017-01-22 → 2026-07-29 · 3 obs
○ 2016-03-29 11:39:26
● 2017-01-22 15:03:00
● 2026-07-29 07:24:20
●NSdns2.tam.ne.jp2017-01-22 → 2026-07-29 · 3 obs
○ 2016-03-29 11:39:26
● 2017-01-22 15:03:00
● 2026-07-29 07:24:20
○NSnewton.tam.ne.jp2015-08-13 → 2016-03-29 · 4 obs
● 2015-08-13 12:29:22
● 2016-03-29 11:39:26
○ 2017-01-22 15:03:00
○ 2026-07-29 07:24:20
○NSpythagoras.tam.ne.jp2015-08-13 → 2016-03-29 · 4 obs
● 2015-08-13 12:29:22
● 2016-03-29 11:39:26
○ 2017-01-22 15:03:00
○ 2026-07-29 07:24:20
●MXsv1.koho.ac.jp2015-08-13 → 2026-07-29 · 2 obs
● 2015-08-13 12:29:22
● 2026-07-29 07:24:20
●A153.127.70.372026-06-30 → 2026-07-29 · 2 obs
● 2026-06-30 18:12:38
● 2026-07-29 07:24:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpf.dns.jp, b.dns.jp, a.dns.jp, c.dns.jp...-
koho.ac.jpdns1.tam.ne.jp, dns2.tam.ne.jp2 records

✅ Authoritative Response

Server:210.133.161.245

NS records: dns1.tam.ne.jp, dns2.tam.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koho.ac.jp (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

TypeCountSample Data
A1153.127.70.37
NS2dns1.tam.ne.jp, dns2.tam.ne.jp
MX1sv1.koho.ac.jp (pri: 10)
TXT1v=spf1 ip4:153.127.70.37 ~all
SOA1dns0.tam.ne.jp postmaster.tam.ne.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.tam.ne.jp, dns2.tam.ne.jp)

Analysis

Hierarchy

sv1.koho.ac.jp is delegated beneath koho.ac.jp.

IP Addresses

koho.ac.jp points to a single IP number: 153.127.70.37.

There are other host names — sv1.koho.ac.jp among them — that share IP numbers with koho.ac.jp.

Name Servers

DNS for koho.ac.jp is handled by three authoritative name servers: dns0.tam.ne.jp, dns1.tam.ne.jp and dns2.tam.ne.jp.

There is at least partial name server overlap between koho.ac.jp and other domains — 88.122.219.in-addr.arpa, 176.133.210.in-addr.arpa, k-sakai.com and two more among them.

These name servers are routinely deployed together with the name servers ns.nice-tv.jp.

dns0.tam.ne.jp, dns1.tam.ne.jp and dns2.tam.ne.jp all have one IP address each — dns0.tam.ne.jp directs to 210.133.160.7, dns1.tam.ne.jp directs to 210.133.161.249 and dns2.tam.ne.jp directs to 210.133.161.245.

Mail Servers

koho.ac.jp has one mail server: sv1.koho.ac.jp.

sv1.koho.ac.jp has exactly one IP number: 153.127.70.37.