`rfc.or.jp`

DNSSEC	⚠️ Not signed
A	122.17.166.17^{🇯🇵 OCN122.16.0.0/12 (AS4713) CIDR BLOCK 82 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
		PTR	`c15vyrov.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	`mwpremgw1.ocn.ad.jp` ⭐
		A	210.145.253.225^{🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
MX	`mwpremgw2.ocn.ad.jp` ⭐
		A	210.145.253.226^{🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
TXT	`v=spf1 +a include:_spf.mwprem.net ~all`
SOA	`mwns1.customer.ne.jp`host-plan-ac@ntt.com serial=1614081286

`or.jp`

	DNSSEC	⚠️ Not signed
	TXT	`or.jp.`

WOT: SAFE (75/100)

Overview

or.jp is a second-level domain under Japan's country code top-level domain (.jp), reserved exclusively for non-profit and organizational entities. It is managed by Japan Registry Services Co., Ltd. (JPRS), the authoritative registry for all .jp domains.

Eligible Registrants

Registration is restricted to Japanese non-profit organizations, including:

Foundations (財団法人) and associations (社団法人)
Medical corporations, audit firms, and religious organizations
NPOs (特定非営利活動法人) and special corporations
Agricultural and consumer cooperatives
International organizations and their Japanese branches
Foreign government embassies and consulates in Japan

Generally, each organization may register only one or.jp domain.

DNS Infrastructure

The or.jp zone is served by Japan's robust DNS infrastructure:

Nameservers: a.dns.jp through h.dns.jp (8 anycast servers)
Primary SOA: z.dns.jp
DNSSEC: Fully signed with validated chain of trust from root
Registry: JPRS (Japan Registry Services)

The domain hosts hundreds of subdomains for Japanese nonprofits, NGOs, professional associations, and public-interest organizations.

Same first word

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rfc.media

rfc.ro

rfc.mobi

rfc.com.ph

rfc.co

rfc.com.tn

rfc.fi

rfc.org

rfc.com

rfc.jp

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rfc.se

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rfc.ph

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rfc.net

rfc.in

rfc.jo

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rfc.cz

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rfc.com.au

rfc.com.ru

rfc.gr

rfc.world

rfc.or.kr

rfc.frl

rfc.com.hk

rfc.ie

rfc.wtf

rfc.tn

rfc.be

rfc.kz

rfc.pl

rfc.nl

rfc.museum

rfc.ninja

rfc.wales

rfc.no

rfc.ru

rfc.sk

rfc.or.jp

rfc.com.br

rfc.su

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DNS History

14 records (5 active, 9 former)

●NSmwns1.customer.ne.jp2026-07-02 → 2026-07-04 · 3 obs

○ 2016-12-30 05:22:00
● 2026-07-02 02:31:52
● 2026-07-04 19:20:34

●NSmwns2.customer.ne.jp2026-07-02 → 2026-07-04 · 3 obs

○ 2016-12-30 05:22:00
● 2026-07-02 02:31:52
● 2026-07-04 19:20:34

○NSns-231.dns.jp-e1.cloudn-service.com2016-04-15 → 2016-12-30 · 5 obs

○ 2016-01-05 09:45:04
● 2016-04-15 04:14:44
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

○NSns-232.dns.jp-w1.cloudn-service.com2016-04-15 → 2016-12-30 · 5 obs

○ 2016-01-05 09:45:04
● 2016-04-15 04:14:44
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

○NSns-233.dns.us-e1.cloudn-service.com2016-04-15 → 2016-12-30 · 5 obs

○ 2016-01-05 09:45:04
● 2016-04-15 04:14:44
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

○NSns1.secure.net2015-08-04 → 2016-01-05 · 4 obs

● 2015-08-04 14:49:52
● 2016-01-05 09:45:04
○ 2016-04-15 04:14:44
○ 2026-07-04 19:20:34

○NSns2.secure.net2015-08-04 → 2016-01-05 · 4 obs

● 2015-08-04 14:49:52
● 2016-01-05 09:45:04
○ 2016-04-15 04:14:44
○ 2026-07-04 19:20:34

●MXmwpremgw1.ocn.ad.jp2026-07-02 → 2026-07-04 · 3 obs

○ 2016-12-30 05:22:00
● 2026-07-02 02:31:52
● 2026-07-04 19:20:34

●MXmwpremgw2.ocn.ad.jp2026-07-02 → 2026-07-04 · 3 obs

○ 2016-12-30 05:22:00
● 2026-07-02 02:31:52
● 2026-07-04 19:20:34

○MXvcgw1.ocn.ad.jp2015-08-04 → 2016-12-30 · 4 obs

● 2015-08-04 14:49:52
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

○MXvcgw2.ocn.ad.jp2015-08-04 → 2016-12-30 · 4 obs

● 2015-08-04 14:49:52
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

●A122.17.166.172026-07-02 → 2026-07-04 · 3 obs

○ 2016-12-30 05:22:00
● 2026-07-02 02:31:52
● 2026-07-04 19:20:34

○A180.37.185.1662015-08-04 → 2016-04-15 · 4 obs

● 2015-08-04 14:49:52
● 2016-04-15 04:14:44
○ 2016-12-30 05:22:00
○ 2026-07-04 19:20:34

○A60.43.153.2432016-12-30 → 2016-12-30 · 4 obs

○ 2016-04-15 04:14:44
● 2016-12-30 05:22:00
○ 2026-07-02 02:31:52
○ 2026-07-04 19:20:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
rfc.or.jp	mwns2.customer.ne.jp, mwns1.customer.ne.jp	-

✅ Authoritative Response

Server:202.17.152.183

NS records: mwns2.customer.ne.jp, mwns1.customer.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfc.or.jp (unsigned zone)

⏱️ Timing

Total: 2366ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`122.17.166.17`
NS	2	`mwns2.customer.ne.jp, mwns1.customer.ne.jp`
MX	2	`mwpremgw1.ocn.ad.jp (pri: 10), mwpremgw2.ocn.ad.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

IP Addresses

rfc.or.jp directs to one IP number, which is 122.17.166.17.

Name Servers

Two name servers handle the delegation for rfc.or.jp: mwns1.customer.ne.jp and mwns2.customer.ne.jp.

rfc.or.jp has the same name server delegation as a number of other domains, such as engan.jp, liuteriasaraviolini.com, hattori-cycle.co.jp and two more.

Each of mwns1.customer.ne.jp and mwns2.customer.ne.jp has one IP address: mwns1.customer.ne.jp uses 210.150.23.210 and mwns2.customer.ne.jp uses 202.17.152.183.

Mail Servers

The MX records for rfc.or.jp point to two mail servers: mwpremgw1.ocn.ad.jp and mwpremgw2.ocn.ad.jp.

rfc.or.jp has the same mail server arrangement as a number of other domains, for example c15mrehg.mwprem.net, asadaame.co.jp, c157zcuv.mwprem.net and two more.

rfc.or.jp shares at least some of its mail servers with other domains — for example c15frksc.mwprem.net, sk-gr.co.jp, gifu-shinoda.co.jp and two more.

Each of mwpremgw1.ocn.ad.jp and mwpremgw2.ocn.ad.jp has one IP address: mwpremgw1.ocn.ad.jp uses 210.145.253.225 and mwpremgw2.ocn.ad.jp uses 210.145.253.226.

rfc.or.jp - robtex.com

rfc.or.jp

or.jp

Overview

Eligible Registrants

DNS Infrastructure

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`rfc.or.jp`

`or.jp`