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 2026-08-29. For this date, NameServerHistory found 69 DNS check records, 68 successful responses, 1 failed responses, and 230 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

69

Historical checks stored for this nameserver on selected date

Average Latency

230 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-29 23:32

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

68

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

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 2026-08-29 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
69 2026-08-29 23:32 639236429501366737
-
68 2026-08-29 23:15 639236419366541896
5 ms 216.21.231.166
67 2026-08-29 22:58 639236409033370421
19 ms 216.21.231.166
66 2026-08-29 22:41 639236398677638980
36 ms 216.21.231.166
65 2026-08-29 22:24 639236388335394435
12 ms 216.21.231.166
64 2026-08-29 21:30 639236356238021142
27 ms 216.21.231.166
63 2026-08-29 21:13 639236346147662482
2019 ms 216.21.231.166
62 2026-08-29 20:56 639236336073303987
12 ms 216.21.231.166
61 2026-08-29 20:39 639236325803271480
3 ms 216.21.231.166
60 2026-08-29 20:22 639236315636203732
12 ms 216.21.231.166
59 2026-08-29 20:05 639236305430277951
34 ms 216.21.231.166
58 2026-08-29 19:49 639236295286597133
41 ms 216.21.231.166
57 2026-08-29 19:32 639236285137083691
53 ms 216.21.231.166
56 2026-08-29 19:15 639236274938699727
6 ms 216.21.231.166
55 2026-08-29 18:57 639236264595544117
12 ms 216.21.231.166
54 2026-08-29 18:40 639236254203764064
53 ms 216.21.231.166
53 2026-08-29 18:23 639236243919128798
73 ms 216.21.231.166
52 2026-08-29 17:29 639236211708980066
4 ms 216.21.231.166
51 2026-08-29 17:12 639236201724764228
26 ms 216.21.231.166
50 2026-08-29 16:56 639236191714376906
5 ms 216.21.231.166
49 2026-08-29 16:39 639236181773042179
2014 ms 216.21.231.166
48 2026-08-29 16:22 639236171632735061
7 ms 216.21.231.166
47 2026-08-29 16:05 639236161347015414
10 ms 216.21.231.166
46 2026-08-29 15:48 639236151200362098
70 ms 216.21.231.166
45 2026-08-29 15:31 639236141026805328
37 ms 216.21.231.166
44 2026-08-29 15:15 639236131100930722
54 ms 216.21.231.166
43 2026-08-29 14:58 639236120950030411
19 ms 216.21.231.166
42 2026-08-29 14:41 639236110532007205
12 ms 216.21.231.166
41 2026-08-29 14:23 639236100176958860
2013 ms 216.21.231.166
40 2026-08-29 13:30 639236068470247956
7 ms 216.21.231.166
39 2026-08-29 13:14 639236058468679452
15 ms 216.21.231.166
38 2026-08-29 12:57 639236048317337090
29 ms 216.21.231.166
37 2026-08-29 12:40 639236038221169202
10 ms 216.21.231.166
36 2026-08-29 12:23 639236028175589918
20 ms 216.21.231.166
35 2026-08-29 12:06 639236017965421028
76 ms 216.21.231.166
34 2026-08-29 11:49 639236007792625266
2020 ms 216.21.231.166
33 2026-08-29 11:32 639235997602806960
9 ms 216.21.231.166
32 2026-08-29 11:15 639235987487833458
12 ms 216.21.231.166
31 2026-08-29 10:58 639235977211002296
13 ms 216.21.231.166
30 2026-08-29 10:41 639235966864596836
65 ms 216.21.231.166
29 2026-08-29 10:24 639235956590882003
38 ms 216.21.231.166
28 2026-08-29 09:30 639235924465736791
8 ms 216.21.231.166
27 2026-08-29 09:14 639235914430611197
25 ms 216.21.231.166
26 2026-08-29 08:57 639235904343784853
5 ms 216.21.231.166
25 2026-08-29 08:40 639235894201078068
2013 ms 216.21.231.166
24 2026-08-29 08:23 639235884233447452
3 ms 216.21.231.166
23 2026-08-29 08:07 639235874142207309
9 ms 216.21.231.166
22 2026-08-29 07:50 639235863974652466
4 ms 216.21.231.166
21 2026-08-29 07:32 639235853716243436
32 ms 216.21.231.166
20 2026-08-29 07:16 639235843614494759
3 ms 216.21.231.166
19 2026-08-29 06:59 639235833401459551
28 ms 216.21.231.166
18 2026-08-29 06:42 639235823220464528
5 ms 216.21.231.166
17 2026-08-29 06:25 639235812997510905
2065 ms 216.21.231.166
16 2026-08-29 05:31 639235781101962521
4 ms 216.21.231.166
15 2026-08-29 05:15 639235771207673260
7 ms 216.21.231.166
14 2026-08-29 04:58 639235761047429642
40 ms 216.21.231.166
13 2026-08-29 04:41 639235750964347246
46 ms 216.21.231.166
12 2026-08-29 04:24 639235740923490874
20 ms 216.21.231.166
11 2026-08-29 04:08 639235730842894399
6 ms 216.21.231.166
10 2026-08-29 03:51 639235720760084717
2033 ms 216.21.231.166
9 2026-08-29 03:34 639235710843666743
16 ms 216.21.231.166
8 2026-08-29 03:17 639235700733510561
29 ms 216.21.231.166
7 2026-08-29 03:00 639235690509906192
69 ms 216.21.231.166
6 2026-08-29 02:43 639235680156673501
19 ms 216.21.231.166
5 2026-08-29 02:26 639235669720606443
47 ms 216.21.231.166
4 2026-08-29 01:32 639235637451417084
11 ms 216.21.231.166
3 2026-08-29 01:15 639235627307383453
8 ms 216.21.231.166
2 2026-08-29 00:58 639235616906386856
42 ms 216.21.231.166
1 2026-08-29 00:41 639235606582912691
13 ms 216.21.231.166