DNS lookup

Everything DNS says about a domain: traced from the root servers down, every record type asked of the domain's own nameservers, each nameserver checked, then every hostname and policy record it points at followed, with SPF, DMARC, DKIM and DNSSEC checked along the way.

148.163.206.1

1.206.163.148.in-addr.arpa

Zone 206.163.148.in-addr.arpa152 queries in 1.9 s2026-11-09 05:55:08 UTCNot DNSSEC-signed

WHOIS for 148.163.206.1 →Text JSON

Warning The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.5naans.com, ns02.5naans.com, ns03.5naans.com, ns04.5naans.com but 206.163.148.in-addr.arpa itself lists dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net, dns4.p02.nsone.net, ns01.5naans.com, ns02.5naans.com, ns03.5naans.com, ns04.5naans.com. Make the two lists match.
Note 206.163.148.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of dns4.p02.nsone.net (198.51.45.66), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

3600

PTR

ns01.5naans.com.

ANY query: refused politely (RFC 8482)

3600

HINFO

"RFC8482" ""

No records of type A, AAAA, CNAME, DNAME, NS, SOA, MX, TXT, CAA, HTTPS, SVCB, SRV, NAPTR, DS, DNSKEY, CDS, CDNSKEY, NSEC3PARAM, TLSA, SSHFP, LOC, HINFO, RP, URI, SPF, OPENPGPKEY, ZONEMD, CSYNC.

Resolution trace

.asked g.root-servers.net 192.112.36.426 ms
Referral to in-addr.arpa. signed (4 DS)
- b.in-addr-servers.arpa 199.253.183.183 2001:500:87::87
- a.in-addr-servers.arpa 199.180.182.53 2620:37:e000::53
- f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
- e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
- c.in-addr-servers.arpa 196.216.169.10 2001:43f8:110::10
- d.in-addr-servers.arpa 200.10.60.53 2001:13c7:7010::53
192.33.4.12 failed: NOERROR
in-addr.arpa.asked b.in-addr-servers.arpa 199.253.183.1835.9 ms
Referral to 148.in-addr.arpa. signed (1 DS)
- r.arin.net 199.180.180.63 2001:500:f0::63
- u.arin.net 204.61.216.50 2001:500:14:6050:ad::1
- x.arin.net 199.180.180.63 2001:500:f0::63
- y.arin.net 192.82.134.30 2001:500:127::30
- z.arin.net 199.180.180.63 2001:500:f0::63
- arin.authdns.ripe.net 193.0.9.10 2a13:27c0:30::10
No glue for r.arin.net, u.arin.net, x.arin.net, y.arin.net, z.arin.net, arin.authdns.ripe.net: addresses looked up via a resolver.
148.in-addr.arpa.asked arin.authdns.ripe.net 193.0.9.1012 ms
Referral to 206.163.148.in-addr.arpa. unsigned delegation
- ns04.5naans.com 148.163.206.193 2607:f740:e624:c::1
- dns1.p01.nsone.net 198.51.44.1 2620:4d:4000:6259:7:1:0:1
- dns2.p01.nsone.net 198.51.45.1 2a00:edc0:6259:7:1::2
- dns4.p01.nsone.net 198.51.45.65 2a00:edc0:6259:7:1::4
- dns3.p01.nsone.net 198.51.44.65 2620:4d:4000:6259:7:1:0:3
- ns01.5naans.com 148.163.206.1 2607:f740:e624::1
- ns02.5naans.com 148.163.206.65 2607:f740:e624:4::1
- ns03.5naans.com 148.163.206.129 2607:f740:e624:8::1
No glue for ns04.5naans.com, dns1.p01.nsone.net, dns2.p01.nsone.net, dns4.p01.nsone.net, dns3.p01.nsone.net, ns01.5naans.com, ns02.5naans.com, ns03.5naans.com: addresses looked up via a resolver.
199.180.180.63 failed: NOERROR
206.163.148.in-addr.arpa.asked dns1.p01.nsone.net 198.51.44.113 ms
Answer (authoritative):
1.206.163.148.in-addr.arpa. 3600 PTR ns01.5naans.com.
148.163.206.193 failed: NOERROR

Nameservers

Every address of every nameserver, asked for 206.163.148.in-addr.arpa's SOA. "Parent" means the 148.in-addr.arpa zone delegates to it; "zone" means 206.163.148.in-addr.arpa lists it itself.

Nameserver

Listed in

Address

Status

Serial

Time

dns1.p01.nsone.net

parent

198.51.44.1 glue

authoritative

1600422142

14 ms

2620:4d:4000:6259:7:1:0:1 glue

authoritative

1600422142

13 ms

dns1.p02.nsone.net

zone

198.51.44.2

authoritative

1600422142

13 ms

2620:4d:4000:6259:7:2:0:1

authoritative

1600422142

15 ms

dns2.p01.nsone.net

parent

198.51.45.1 glue

authoritative

1600422142

5.9 ms

2a00:edc0:6259:7:1::2 glue

authoritative

1600422142

13 ms

dns2.p02.nsone.net

zone

198.51.45.2

authoritative

1600422142

6.3 ms

2a00:edc0:6259:7:2::2

authoritative

1600422142

14 ms

dns3.p01.nsone.net

parent

198.51.44.65 glue

authoritative

1600422142

14 ms

2620:4d:4000:6259:7:1:0:3 glue

authoritative

1600422142

14 ms

dns3.p02.nsone.net

zone

198.51.44.66

authoritative

1600422142

12 ms

2620:4d:4000:6259:7:2:0:3

authoritative

1600422142

14 ms

dns4.p01.nsone.net

parent

198.51.45.65 glue

authoritative

1600422142

5.8 ms

2a00:edc0:6259:7:1::4 glue

authoritative

1600422142

12 ms

dns4.p02.nsone.net

zone

198.51.45.66

authoritative

1600422142

5.7 ms

2a00:edc0:6259:7:2::4

authoritative

1600422142

13 ms

ns01.5naans.com

parent + zone

148.163.206.1 glue

authoritative

1600422142

101 ms

2607:f740:e624::1 glue

authoritative

1600422142

91 ms

ns02.5naans.com

parent + zone

148.163.206.65 glue

authoritative

1600422142

101 ms

2607:f740:e624:4::1 glue

authoritative

1600422142

92 ms

ns03.5naans.com

parent + zone

148.163.206.129 glue

authoritative

1600422142

92 ms

2607:f740:e624:8::1 glue

authoritative

1600422142

93 ms

ns04.5naans.com

parent + zone

148.163.206.193 glue

authoritative

1600422142

93 ms

2607:f740:e624:c::1 glue

authoritative

1600422142

92 ms

DNSSEC

206.163.148.in-addr.arpa isn't signed: no DS at the parent and no DNSKEY in the zone.

Hosts and reverse DNS

Every hostname the records point at, resolved to its addresses; each address's PTR (reverse DNS), with ✓ where the PTR name resolves back to the same address.

Host

Address

Reverse DNS (PTR)

dns1.p01.nsone.net

nameserver

198.51.44.1

dns1.p01.nsone.net ✓

2620:4d:4000:6259:7:1:0:1

dns1.p01.nsone.net ✓

dns1.p02.nsone.net

nameserver

198.51.44.2

dns1.p02.nsone.net ✓

2620:4d:4000:6259:7:2:0:1

dns1.p02.nsone.net ✓

dns2.p01.nsone.net

nameserver

198.51.45.1

dns2.p01.nsone.net ✓

2a00:edc0:6259:7:1::2

dns2.p01.nsone.net ✓

dns2.p02.nsone.net

nameserver

198.51.45.2

dns2.p02.nsone.net ✓

2a00:edc0:6259:7:2::2

dns2.p02.nsone.net ✓

dns3.p01.nsone.net

nameserver

198.51.44.65

dns3.p01.nsone.net ✓

2620:4d:4000:6259:7:1:0:3

dns3.p01.nsone.net ✓

dns3.p02.nsone.net

nameserver

198.51.44.66

dns3.p02.nsone.net ✓

2620:4d:4000:6259:7:2:0:3

dns3.p02.nsone.net ✓

dns4.p01.nsone.net

nameserver

198.51.45.65

dns4.p01.nsone.net ✓

2a00:edc0:6259:7:1::4

dns4.p01.nsone.net ✓

dns4.p02.nsone.net

nameserver

198.51.45.66

dns4.p02.nsone.net ✓

2a00:edc0:6259:7:2::4

dns4.p02.nsone.net ✓

ns01.5naans.com

nameserver · PTR target

148.163.206.1

ns01.5naans.com ✓

2607:f740:e624::1

none

ns02.5naans.com

nameserver

148.163.206.65

ns02.5naans.com ✓

2607:f740:e624:4::1

none

ns03.5naans.com

nameserver

148.163.206.129

ns03.5naans.com ✓

2607:f740:e624:8::1

none

ns04.5naans.com

nameserver

148.163.206.193

ns04.5naans.com ✓

2607:f740:e624:c::1

none

Public resolvers

What four public resolvers answer right now, from their caches. Highlighted values differ from the authoritative answer: either a recent change they haven't picked up yet (the TTL says how long until they do), or, for A and AAAA, a CDN or geo-routed site handing each resolver location its own addresses.

Resolver

PTR

Cloudflare 1.1.1.1

ns01.5naans.com.

TTL 3600

Google 8.8.8.8

ns01.5naans.com.

TTL 3600

Quad9 9.9.9.9

ns01.5naans.com.

TTL 3600

OpenDNS 208.67.222.222

ns01.5naans.com.

TTL 3600

Text dump

; DNS report for 1.206.163.148.in-addr.arpa (148.163.206.1)
; 2026-11-09 05:55:08 UTC, 152 queries in 1.93 s, zone 206.163.148.in-addr.arpa

;; FINDINGS
;  [WARN] The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.5naans.com, ns02.5naans.com, ns03.5naans.com, ns04.5naans.com but 206.163.148.in-addr.arpa itself lists dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net, dns4.p02.nsone.net, ns01.5naans.com, ns02.5naans.com, ns03.5naans.com, ns04.5naans.com. Make the two lists match.
;  [INFO] 206.163.148.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from dns4.p02.nsone.net (198.51.45.66))
1.206.163.148.in-addr.arpa.	3600	IN	PTR	ns01.5naans.com.

;; TRACE
;  1.206.163.148.in-addr.arpa PTR
;  . @g.root-servers.net (192.112.36.4) 26 ms [NOERROR qr]: referral to in-addr.arpa.
in-addr.arpa.		NS	b.in-addr-servers.arpa.	; 199.253.183.183 2001:500:87::87
in-addr.arpa.		NS	a.in-addr-servers.arpa.	; 199.180.182.53 2620:37:e000::53
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
in-addr.arpa.		NS	e.in-addr-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
in-addr.arpa.		NS	c.in-addr-servers.arpa.	; 196.216.169.10 2001:43f8:110::10
in-addr.arpa.		NS	d.in-addr-servers.arpa.	; 200.10.60.53 2001:13c7:7010::53
in-addr.arpa.	86400	IN	DS	53696 8 2 13E5501C56B20394DA921B51412D48B7089C5EB6957A7C58553C4D4D424F04DF
in-addr.arpa.	86400	IN	DS	63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73
in-addr.arpa.	86400	IN	DS	47054 8 2 5CAFCCEC201D1933B4C9F6A9C8F51E51F3B39979058AC21B8DF1B1F281CBC6F2
in-addr.arpa.	86400	IN	DS	54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08
;  in-addr.arpa. @b.in-addr-servers.arpa (199.253.183.183) 5.9 ms [NOERROR qr]: referral to 148.in-addr.arpa.
148.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
148.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
148.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
148.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
148.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
148.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
148.in-addr.arpa.	86400	IN	DS	18451 8 2 16C0B095D3DDB9F9F85DB0FAEAA87823F9FE847BC07E514C48F7E78E23A712F7
;  148.in-addr.arpa. @arin.authdns.ripe.net (193.0.9.10) 12 ms [NOERROR qr]: referral to 206.163.148.in-addr.arpa.
206.163.148.in-addr.arpa.		NS	ns04.5naans.com.	; 148.163.206.193 2607:f740:e624:c::1
206.163.148.in-addr.arpa.		NS	dns1.p01.nsone.net.	; 198.51.44.1 2620:4d:4000:6259:7:1:0:1
206.163.148.in-addr.arpa.		NS	dns2.p01.nsone.net.	; 198.51.45.1 2a00:edc0:6259:7:1::2
206.163.148.in-addr.arpa.		NS	dns4.p01.nsone.net.	; 198.51.45.65 2a00:edc0:6259:7:1::4
206.163.148.in-addr.arpa.		NS	dns3.p01.nsone.net.	; 198.51.44.65 2620:4d:4000:6259:7:1:0:3
206.163.148.in-addr.arpa.		NS	ns01.5naans.com.	; 148.163.206.1 2607:f740:e624::1
206.163.148.in-addr.arpa.		NS	ns02.5naans.com.	; 148.163.206.65 2607:f740:e624:4::1
206.163.148.in-addr.arpa.		NS	ns03.5naans.com.	; 148.163.206.129 2607:f740:e624:8::1
;  206.163.148.in-addr.arpa. @dns1.p01.nsone.net (198.51.44.1) 13 ms [NOERROR qr aa]: answer
1.206.163.148.in-addr.arpa.	3600	IN	PTR	ns01.5naans.com.

;; NAMESERVERS (SOA asked of each address)
;  dns1.p01.nsone.net [parent]
;    198.51.44.1                             ok                        1600422142  14 ms
;    2620:4d:4000:6259:7:1:0:1               ok                        1600422142  13 ms
;  dns1.p02.nsone.net [zone]
;    198.51.44.2                             ok                        1600422142  13 ms
;    2620:4d:4000:6259:7:2:0:1               ok                        1600422142  15 ms
;  dns2.p01.nsone.net [parent]
;    198.51.45.1                             ok                        1600422142  5.9 ms
;    2a00:edc0:6259:7:1::2                   ok                        1600422142  13 ms
;  dns2.p02.nsone.net [zone]
;    198.51.45.2                             ok                        1600422142  6.3 ms
;    2a00:edc0:6259:7:2::2                   ok                        1600422142  14 ms
;  dns3.p01.nsone.net [parent]
;    198.51.44.65                            ok                        1600422142  14 ms
;    2620:4d:4000:6259:7:1:0:3               ok                        1600422142  14 ms
;  dns3.p02.nsone.net [zone]
;    198.51.44.66                            ok                        1600422142  12 ms
;    2620:4d:4000:6259:7:2:0:3               ok                        1600422142  14 ms
;  dns4.p01.nsone.net [parent]
;    198.51.45.65                            ok                        1600422142  5.8 ms
;    2a00:edc0:6259:7:1::4                   ok                        1600422142  12 ms
;  dns4.p02.nsone.net [zone]
;    198.51.45.66                            ok                        1600422142  5.7 ms
;    2a00:edc0:6259:7:2::4                   ok                        1600422142  13 ms
;  ns01.5naans.com [parent+zone]
;    148.163.206.1                           ok                        1600422142  101 ms
;    2607:f740:e624::1                       ok                        1600422142  91 ms
;  ns02.5naans.com [parent+zone]
;    148.163.206.65                          ok                        1600422142  101 ms
;    2607:f740:e624:4::1                     ok                        1600422142  92 ms
;  ns03.5naans.com [parent+zone]
;    148.163.206.129                         ok                        1600422142  92 ms
;    2607:f740:e624:8::1                     ok                        1600422142  93 ms
;  ns04.5naans.com [parent+zone]
;    148.163.206.193                         ok                        1600422142  93 ms
;    2607:f740:e624:c::1                     ok                        1600422142  92 ms

;; DNSSEC: unsigned

;; HOSTS
;  dns1.p01.nsone.net (nameserver)
;    198.51.44.1                             PTR dns1.p01.nsone.net (confirmed)
;    2620:4d:4000:6259:7:1:0:1               PTR dns1.p01.nsone.net (confirmed)
;  dns1.p02.nsone.net (nameserver)
;    198.51.44.2                             PTR dns1.p02.nsone.net (confirmed)
;    2620:4d:4000:6259:7:2:0:1               PTR dns1.p02.nsone.net (confirmed)
;  dns2.p01.nsone.net (nameserver)
;    198.51.45.1                             PTR dns2.p01.nsone.net (confirmed)
;    2a00:edc0:6259:7:1::2                   PTR dns2.p01.nsone.net (confirmed)
;  dns2.p02.nsone.net (nameserver)
;    198.51.45.2                             PTR dns2.p02.nsone.net (confirmed)
;    2a00:edc0:6259:7:2::2                   PTR dns2.p02.nsone.net (confirmed)
;  dns3.p01.nsone.net (nameserver)
;    198.51.44.65                            PTR dns3.p01.nsone.net (confirmed)
;    2620:4d:4000:6259:7:1:0:3               PTR dns3.p01.nsone.net (confirmed)
;  dns3.p02.nsone.net (nameserver)
;    198.51.44.66                            PTR dns3.p02.nsone.net (confirmed)
;    2620:4d:4000:6259:7:2:0:3               PTR dns3.p02.nsone.net (confirmed)
;  dns4.p01.nsone.net (nameserver)
;    198.51.45.65                            PTR dns4.p01.nsone.net (confirmed)
;    2a00:edc0:6259:7:1::4                   PTR dns4.p01.nsone.net (confirmed)
;  dns4.p02.nsone.net (nameserver)
;    198.51.45.66                            PTR dns4.p02.nsone.net (confirmed)
;    2a00:edc0:6259:7:2::4                   PTR dns4.p02.nsone.net (confirmed)
;  ns01.5naans.com (nameserver; PTR target)
;    148.163.206.1                           PTR ns01.5naans.com (confirmed)
;    2607:f740:e624::1                       PTR none
;  ns02.5naans.com (nameserver)
;    148.163.206.65                          PTR ns02.5naans.com (confirmed)
;    2607:f740:e624:4::1                     PTR none
;  ns03.5naans.com (nameserver)
;    148.163.206.129                         PTR ns03.5naans.com (confirmed)
;    2607:f740:e624:8::1                     PTR none
;  ns04.5naans.com (nameserver)
;    148.163.206.193                         PTR ns04.5naans.com (confirmed)
;    2607:f740:e624:c::1                     PTR none

;; PUBLIC RESOLVERS
;  Cloudflare PTR   ns01.5naans.com.  ttl 3600
;  Google     PTR   ns01.5naans.com.  ttl 3600
;  Quad9      PTR   ns01.5naans.com.  ttl 3600
;  OpenDNS    PTR   ns01.5naans.com.  ttl 3600