u-corp.jp - robtex.com
u-corp.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 122.17.146.246🇯🇵 OCN122.16.0.0/12 (AS4713) CIDR BLOCK 82 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | c15pbv72.mwprem.net | ||||||
| NS | mwns1.customer.ne.jp ⭐ | ||||||
| A | 210.150.23.210🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE | ||||||
| NS | mwns2.customer.ne.jp | ||||||
| A | 202.17.152.183🇯🇵 InfoSphere202.17.128.0/19 INFOSPHERE | ||||||
| MX | u-corp.jp ⭐ | ||||||
| A | 122.17.146.246🇯🇵 OCN122.16.0.0/12 (AS4713) CIDR BLOCK 82 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | c15pbv72.mwprem.net | ||||||
| TXT | v=spf1 +a include:_spf.mwprem.net ~all | ||||||
| SOA | mwns1.customer.ne.jphost-plan-ac@ntt.com serial=1613854034 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1785565803 | ||||||
MX for
u-corp.jp |
Subdomains
adv.u-corp.jp |
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
●NSmwns1.customer.ne.jp2026-02-24 → 2026-08-01 · 3 obs
● 2026-02-24 06:22:16
● 2026-08-01 07:11:30
●NSmwns2.customer.ne.jp2026-02-24 → 2026-08-01 · 3 obs
● 2026-02-24 06:22:16
● 2026-08-01 07:11:30
○NSns-234.dns.jp-e1.cloudn-service.com2016-03-03 → 2017-02-17 · 5 obs
● 2016-03-03 17:20:18
● 2017-02-17 04:39:18
○ 2026-02-24 06:22:16
○ 2026-08-01 07:11:30
○NSns-235.dns.jp-w1.cloudn-service.com2016-03-03 → 2017-02-17 · 5 obs
● 2016-03-03 17:20:18
● 2017-02-17 04:39:18
○ 2026-02-24 06:22:16
○ 2026-08-01 07:11:30
○NSns-236.dns.us-e1.cloudn-service.com2016-03-03 → 2017-02-17 · 5 obs
● 2016-03-03 17:20:18
● 2017-02-17 04:39:18
○ 2026-02-24 06:22:16
○ 2026-08-01 07:11:30
○NSns1.secure.net2015-07-24 → 2015-11-26 · 4 obs
● 2015-11-26 14:12:44
○ 2016-03-03 17:20:18
○ 2026-08-01 07:11:30
○NSns2.secure.net2015-07-24 → 2015-11-26 · 4 obs
● 2015-11-26 14:12:44
○ 2016-03-03 17:20:18
○ 2026-08-01 07:11:30
●MXu-corp.jp2015-07-24 → 2026-08-01 · 2 obs
● 2026-08-01 07:11:30
●A122.17.146.2462026-02-24 → 2026-08-01 · 3 obs
● 2026-02-24 06:22:16
● 2026-08-01 07:11:30
○A153.149.195.2332015-07-24 → 2017-02-17 · 4 obs
● 2017-02-17 04:39:18
○ 2026-02-24 06:22:16
○ 2026-08-01 07:11:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| u-corp.jp | mwns2.customer.ne.jp, mwns1.customer.ne.jp | - |
✅ Authoritative Response
Server:210.150.23.210
NS records: mwns2.customer.ne.jp, mwns1.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for u-corp.jp (unsigned zone)
⏱️ Timing
Total: 3330ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 122.17.146.246 |
| NS | 2 | mwns2.customer.ne.jp, mwns1.customer.ne.jp |
| MX | 1 | u-corp.jp (pri: 10) |
| TXT | 1 | v=spf1 +a include:_spf.mwprem.net ~all |
| SOA | 1 | mwns1.customer.ne.jp host-plan-ac.ntt.co |
Analysis
Hierarchy
u-corp.jp is a parent domain of adv.u-corp.jp.
Mail Server Role
The MX record for u-corp.jp points back to u-corp.jp — it is its own mail server.
IP Addresses
u-corp.jp directs to one IP number, which is 122.17.146.246.
adv.u-corp.jp, u-corp.co.jp and c15pbv72.mwprem.net are examples of other host names that share IP numbers with u-corp.jp.
Name Servers
DNS delegation for u-corp.jp points to two name servers: mwns1.customer.ne.jp and mwns2.customer.ne.jp.
u-corp.jp has the same name server delegation as a number of other domains, such as wakayama-kinkoui.jp, isakadenki.co.jp, agawa-foods.co.jp and two more.
mwns1.customer.ne.jp and mwns2.customer.ne.jp each resolve to one IP number: mwns1.customer.ne.jp points to 210.150.23.210 and mwns2.customer.ne.jp points to 202.17.152.183.
Mail Servers
The MX record for u-corp.jp points to a single mail server: u-corp.jp.
u-corp.jp has exactly one IP number: 122.17.146.246.