jbcrg.jp - robtex.com

jbcrg.jp

DNSSEC⚠️ Not signed
A157.205.7.143🇯🇵 AICS157.205.6.0/23 OTSUKA CORPORATION X-Keiro: noc@aics.ad.jp X-Keiro: JPIRR-alert@ml.aics.ad.jp
PTRwebsvr157-205-7-143.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
MXjbcrg-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:cc1a::2🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00302.inbound.protection.outlook.com
A2a01:111:f403:cc1f::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os9p286cu00100.inbound.protection.outlook.com
A52.101.124.5🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00305.inbound.protection.outlook.com
A52.101.124.6🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00206.inbound.protection.outlook.com
A52.101.157.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01203.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXTv=spf1 ip4:157.205.7.143 include:spf.protection.outlook.com include:spf.bmv.j...
SOAskydns99.otsuka-office365.jphostmaster@otsuka-office365.jp 2025-10-23 #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=1778752803

Same first word

jbcrg.jp

Similar names

jcrgb.com
bjcrg.com.cn
jrbcg.at
gjrcb.com
jrbcg.com
gbcrj.com
jgrbc.com
bjcrg.net
bjcrg.com
bjgrc.com
bcgrj.com
cbgrj.com
bjcrg.cn

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSskydns11.otsuka-office365.jpskydns12.otsuka-office365.jpskydns13.otsuka-office365.jpskydns99.otsuka-office365.jpfjkdns11.alpha-prm.jpfjkdns12.alpha-prm.jpfjkdns13.alpha-prm.jpfjkdns99.alpha-prm.jpns.jbcrg.jpns04.xbit.jpMXjbcrg-jp.mail.protection.outlook.commail.jbcrg.jpmxi.alpha-prm.jpA157.205.7.143157.205.177.12159.106.33.112
○NSfjkdns11.alpha-prm.jp2019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○NSfjkdns12.alpha-prm.jp2019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○NSfjkdns13.alpha-prm.jp2019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○NSfjkdns99.alpha-prm.jp2019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○NSns.jbcrg.jp2015-08-09 → 2017-03-19 · 4 obs
● 2015-08-09 08:51:12
● 2017-03-19 04:44:30
○ 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○NSns04.xbit.jp2015-08-09 → 2017-03-19 · 4 obs
● 2015-08-09 08:51:12
● 2017-03-19 04:44:30
○ 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
●NSskydns11.otsuka-office365.jp2026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
●NSskydns12.otsuka-office365.jp2026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
●NSskydns13.otsuka-office365.jp2026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
●NSskydns99.otsuka-office365.jp2026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
●MXjbcrg-jp.mail.protection.outlook.com2026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
○MXmail.jbcrg.jp2015-08-09 → 2017-03-19 · 4 obs
● 2015-08-09 08:51:12
● 2017-03-19 04:44:30
○ 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○MXmxi.alpha-prm.jp2019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
○A157.205.177.1212019-04-28 → 2019-04-28 · 3 obs
○ 2017-03-19 04:44:30
● 2019-04-28 00:28:18
○ 2026-05-14 10:24:16
●A157.205.7.1432026-05-14 → 2026-05-14 · 2 obs
○ 2019-04-28 00:28:18
● 2026-05-14 10:24:16
○A59.106.33.1122015-08-09 → 2017-03-19 · 4 obs
● 2015-08-09 08:51:12
● 2017-03-19 04:44:30
○ 2019-04-28 00:28:18
○ 2026-05-14 10:24:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, f.dns.jp, c.dns.jp, h.dns.jp...-
jbcrg.jpskydns12.otsuka-office365.jp, skydns13.otsuka-office365.jp, skydns11.otsuka-office365.jp3 records

✅ Authoritative Response

Server:157.205.160.35

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jbcrg.jp (unsigned zone)

⏱️ Timing

Total: 902ms | Queries: -

📄 Records

TypeCountSample Data
A1157.205.7.143
NS3skydns13.otsuka-office365.jp, skydns11.otsuka-office365.jp...
MX1jbcrg-jp.mail.protection.outlook.com (pr
TXT1v=spf1 ip4:157.205.7.143 include:spf.pro
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

jbcrg.jp resolves to one IP number: 157.205.7.143.

Other host names, for instance websvr157-205-7-143.alpha-prm.jp, share IP numbers with jbcrg.jp.

Name Servers

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

jbcrg.jp at least partially shares name servers with other domains, for instance hamaya-group.co.jp, takeshima-tekko.com, acc-awards.com, gojojapan.com and teikoku-taping.com.

Host names with one IP number: skydns11.otsuka-office365.jp points to 157.205.203.141; skydns12.otsuka-office365.jp points to 157.205.160.35; skydns13.otsuka-office365.jp points to 157.205.160.51; skydns99.otsuka-office365.jp points to 157.205.203.139.

Mail Servers

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

Host jbcrg-jp.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:cc1a::, 2a01:111:f403:cc1a::1, 2a01:111:f403:cc1a::2, 2a01:111:f403:cc1f::, 52.101.124.5, 52.101.124.6, 52.101.157.11 and 52.101.157.40.