yamatoco.jp - robtex.com

yamatoco.jp

DNSSEC⚠️ Not signed
A157.205.170.206🇯🇵 AICS157.205.170.0/23 OTSUKA CORPORATION X-Keiro: noc@aics.ad.jp X-Keiro: JPIRR-alert@ml.aics.ad.jp
PTRwebsvr157-205-170-206.alpha-prm.jp
NSskydns99.otsuka-office365.jp ⭐
A157.205.203.139🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRskymst11.otsuka-office365.jp
NSskydns11.otsuka-office365.jp
A157.205.203.141🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRskydns11.otsuka-office365.jp
NSskydns12.otsuka-office365.jp
A157.205.160.35🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRskydns12.otsuka-office365.jp
NSskydns13.otsuka-office365.jp
A157.205.160.51🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRskydns13.otsuka-office365.jp
MXyamatoco-jp.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A2a01:111:f403:cc1a::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A2a01:111:f403:cc1f::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os9p286cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc24::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01300.inbound.protection.outlook.com
A52.101.124.0🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A52.101.124.5🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRip-52-101-124-5.defastlink.net
A52.101.124.6🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00206.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXT0qh5r8G6ji2lPISPO4yoCAS7yBABBc
TXTv=spf1 include:spf.protection.outlook.com ~all
SOAskydns99.otsuka-office365.jphostmaster@otsuka-office365.jp 2025-08-20 #1

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1774422902

Same first word

yamatoco.com
yamatoco.co.jp
yamatoco.jp

Similar names

macotoya.com
yamacoto.com.tr
tacomayo.com
toyamaco.com

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSskydns11.otsuka-office365.jpskydns12.otsuka-office365.jpskydns13.otsuka-office365.jpskydns99.otsuka-office365.jpns2.cpi.ad.jpns3.cpi.ad.jpMXyamatoco-jp.mail.protection.outlook.comvlmx20.secure.ne.jpvlmx21.secure.ne.jpvlmx22.secure.ne.jpA157.205.170.206110.50.200.58
○NSns2.cpi.ad.jp2015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
○NSns3.cpi.ad.jp2015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
●NSskydns11.otsuka-office365.jp2026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54
●NSskydns12.otsuka-office365.jp2026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54
●NSskydns13.otsuka-office365.jp2026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54
●NSskydns99.otsuka-office365.jp2026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54
○MXvlmx20.secure.ne.jp2015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
○MXvlmx21.secure.ne.jp2015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
○MXvlmx22.secure.ne.jp2015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
●MXyamatoco-jp.mail.protection.outlook.com2026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54
○A110.50.200.582015-04-27 → 2018-01-26 · 3 obs
● 2015-04-27 12:39:02
● 2018-01-26 20:57:40
○ 2026-03-25 07:42:54
●A157.205.170.2062026-03-25 → 2026-03-25 · 2 obs
○ 2018-01-26 20:57:40
● 2026-03-25 07:42:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
yamatoco.jpskydns11.otsuka-office365.jp, skydns13.otsuka-office365.jp, skydns12.otsuka-office365.jp3 records

✅ Authoritative Response

Server:157.205.203.141

NS records: skydns11.otsuka-office365.jp, skydns13.otsuka-office365.jp, skydns12.otsuka-office365.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yamatoco.jp (unsigned zone)

⏱️ Timing

Total: 760ms | Queries: -

📄 Records

TypeCountSample Data
A1157.205.170.206
NS3skydns11.otsuka-office365.jp, skydns12.otsuka-office365.jp...
MX1yamatoco-jp.mail.protection.outlook.com
TXT2v=spf1 include:spf.protection.outlook.co, 0qh5r8G6ji2lPISPO4yoCAS7yBABBc
SOA1skydns99.otsuka-office365.jp hostmaster.

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (skydns13.otsuka-office365.jp, skydns12.otsuka-office365.jp, skydns11.otsuka-office365.jp)

Analysis

IP Addresses

yamatoco.jp resolves to a single IP: 157.205.170.206.

Other host names share IP numbers with yamatoco.jp; for instance websvr157-205-170-206.alpha-prm.jp.

Name Servers

yamatoco.jp is delegated to four name servers: skydns11.otsuka-office365.jp, skydns12.otsuka-office365.jp, skydns13.otsuka-office365.jp and skydns99.otsuka-office365.jp.

yamatoco.jp shares some name servers with other domains, for example intemjapan.co.jp, shinyo-h.co.jp, 3ma.co.jp, minatohama.co.jp and setagaya-icl.or.jp.

Host names with a single IP

skydns11.otsuka-office365.jp resolves to 157.205.203.141

skydns12.otsuka-office365.jp resolves to 157.205.160.35

skydns13.otsuka-office365.jp resolves to 157.205.160.51

skydns99.otsuka-office365.jp resolves to 157.205.203.139

Mail Servers

yamatoco.jp is handled by a single mail server, yamatoco-jp.mail.protection.outlook.com.

Host yamatoco-jp.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:cc1a::, 2a01:111:f403:cc1a::1, 2a01:111:f403:cc1f::, 2a01:111:f403:cc24::, 52.101.124.0, 52.101.124.5, 52.101.124.6 and 52.101.157.40.