DNS response history for dns166.a.register.com

dns166.a.register.com is a DNS nameserver monitored by NameServerHistory. This page provides historical DNS response-time data, nameserver uptime signals, DNS latency observations, resolved IP history, successful response counts, failed response counts, and reliability indicators for this nameserver.

The selected UTC date is 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 74 successful responses, 0 failed responses, and 164 ms average response time. Current selected-date status: At least one successful DNS response was recorded for the selected date.

  • Use this report to investigate historical DNS uptime and nameserver reliability.
  • Compare DNS latency changes, failed DNS checks, and response behavior over time.
  • Review the latest resolved IP address and raw DNS check history for dns166.a.register.com.
Records on Selected Date

74

Historical checks stored for this nameserver on selected date

Average Latency

164 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-22 23:49

All timestamps shown in UTC

Latest Resolved IP on Selected Date

216.21.231.166

Most recently resolved hosting IP on selected date

Successful Responses

74

Checks that returned a measurable response

Failed Responses

0

Checks with no response or no returned latency

Failure Rate

0%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for dns166.a.register.com

Showing DNS history for 2026-08-22 UTC. Newest records appear first.

Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.

# Query Time (UTC) Correlation ID Latency Response IP Address
74 2026-08-22 23:49 639230391807229016
37 ms 216.21.231.166
73 2026-08-22 23:33 639230382051619327
13 ms 216.21.231.166
72 2026-08-22 23:17 639230372323353529
22 ms 216.21.231.166
71 2026-08-22 23:01 639230362586451064
29 ms 216.21.231.166
70 2026-08-22 22:44 639230352793666303
3 ms 216.21.231.166
69 2026-08-22 22:28 639230342775737758
6 ms 216.21.231.166
68 2026-08-22 22:11 639230332639939561
5 ms 216.21.231.166
67 2026-08-22 21:18 639230301014190104
24 ms 216.21.231.166
66 2026-08-22 21:02 639230291048161498
16 ms 216.21.231.166
65 2026-08-22 20:45 639230280894353664
47 ms 216.21.231.166
64 2026-08-22 20:28 639230270699419073
21 ms 216.21.231.166
63 2026-08-22 20:10 639230260248163050
39 ms 216.21.231.166
62 2026-08-22 19:53 639230250122494282
45 ms 216.21.231.166
61 2026-08-22 19:36 639230239972935046
29 ms 216.21.231.166
60 2026-08-22 19:20 639230229963262464
22 ms 216.21.231.166
59 2026-08-22 19:03 639230220033804658
6 ms 216.21.231.166
58 2026-08-22 18:46 639230209891107289
18 ms 216.21.231.166
57 2026-08-22 18:29 639230199630298717
5 ms 216.21.231.166
56 2026-08-22 18:12 639230189301984150
17 ms 216.21.231.166
55 2026-08-22 17:18 639230157138468804
3 ms 216.21.231.166
54 2026-08-22 17:01 639230146987869495
14 ms 216.21.231.166
53 2026-08-22 16:44 639230136768638516
7 ms 216.21.231.166
52 2026-08-22 16:28 639230126735907877
36 ms 216.21.231.166
51 2026-08-22 16:11 639230116551187768
464 ms 216.21.231.166
50 2026-08-22 15:54 639230106335615913
24 ms 216.21.231.166
49 2026-08-22 15:37 639230096177758176
12 ms 216.21.231.166
48 2026-08-22 15:20 639230086185999993
2041 ms 216.21.231.166
47 2026-08-22 15:03 639230076247854903
18 ms 216.21.231.166
46 2026-08-22 14:47 639230066076077530
2032 ms 216.21.231.166
45 2026-08-22 14:29 639230055738197328
28 ms 216.21.231.166
44 2026-08-22 14:12 639230045411225521
7 ms 216.21.231.166
43 2026-08-22 13:18 639230013046000470
8 ms 216.21.231.166
42 2026-08-22 13:01 639230003090037878
22 ms 216.21.231.166
41 2026-08-22 12:45 639229993008259475
22 ms 216.21.231.166
40 2026-08-22 12:28 639229982909449470
22 ms 216.21.231.166
39 2026-08-22 12:11 639229973035502212
9 ms 216.21.231.166
38 2026-08-22 11:55 639229963064296145
15 ms 216.21.231.166
37 2026-08-22 11:38 639229952996162143
17 ms 216.21.231.166
36 2026-08-22 11:21 639229943051949195
43 ms 216.21.231.166
35 2026-08-22 11:05 639229932919214934
4 ms 216.21.231.166
34 2026-08-22 10:48 639229922745889838
62 ms 216.21.231.166
33 2026-08-22 10:31 639229912587214796
16 ms 216.21.231.166
32 2026-08-22 10:13 639229902240004454
8 ms 216.21.231.166
31 2026-08-22 09:21 639229870800501662
6 ms 216.21.231.166
30 2026-08-22 09:05 639229861058384956
32 ms 216.21.231.166
29 2026-08-22 08:49 639229851158592604
132 ms 216.21.231.166
28 2026-08-22 08:32 639229841475569629
8 ms 216.21.231.166
27 2026-08-22 08:16 639229831887658471
30 ms 216.21.231.166
26 2026-08-22 08:00 639229822043670346
62 ms 216.21.231.166
25 2026-08-22 07:44 639229812327913936
17 ms 216.21.231.166
24 2026-08-22 07:27 639229802629488686
7 ms 216.21.231.166
23 2026-08-22 07:12 639229793051447309
36 ms 216.21.231.166
22 2026-08-22 06:55 639229783303531961
40 ms 216.21.231.166
21 2026-08-22 06:39 639229773458051942
2028 ms 216.21.231.166
20 2026-08-22 06:22 639229763373848056
13 ms 216.21.231.166
19 2026-08-22 05:30 639229732140622809
5 ms 216.21.231.166
18 2026-08-22 05:14 639229722699695967
25 ms 216.21.231.166
17 2026-08-22 04:58 639229713097498075
19 ms 216.21.231.166
16 2026-08-22 04:42 639229703543969637
21 ms 216.21.231.166
15 2026-08-22 04:26 639229693970392873
20 ms 216.21.231.166
14 2026-08-22 04:10 639229684277329469
24 ms 216.21.231.166
13 2026-08-22 03:54 639229674501596661
33 ms 216.21.231.166
12 2026-08-22 03:38 639229665064441147
7 ms 216.21.231.166
11 2026-08-22 03:22 639229655507536872
28 ms 216.21.231.166
10 2026-08-22 03:06 639229645849603111
10 ms 216.21.231.166
9 2026-08-22 02:50 639229636090497453
5 ms 216.21.231.166
8 2026-08-22 02:33 639229625978544281
10 ms 216.21.231.166
7 2026-08-22 01:41 639229594644662176
2021 ms 216.21.231.166
6 2026-08-22 01:25 639229585214633065
17 ms 216.21.231.166
5 2026-08-22 01:09 639229575581042175
12 ms 216.21.231.166
4 2026-08-22 00:53 639229565912268962
10 ms 216.21.231.166
3 2026-08-22 00:37 639229556237813203
6 ms 216.21.231.166
2 2026-08-22 00:21 639229546625802518
2059 ms 216.21.231.166
1 2026-08-22 00:05 639229537172016621
40 ms 216.21.231.166