123.221.51.0/24

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Summary

IP address summary information
ASN	AS4713 — NTT DOCOMO BUSINESS,Inc.
BGP Prefix	123.216.0.0/13
Pingable IPs	24
Routers	0


123.221.51.0	—
123.221.51.1	p661001-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.2	p661002-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.3	p661003-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.4	p661004-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.5	p661005-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.6	p661006-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.7	p661007-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.8	p661008-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.9	p661009-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.10	p661010-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.11	p661011-ipxg00c01daianjibetu.nara.ocn.ne.jp	Ping
123.221.51.12	p661012-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.13	p661013-ipxg00c01daianjibetu.nara.ocn.ne.jp
123.221.51.14	p661014-ipxg00c01daianjibetu.nara.ocn.ne.jp

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 -f6 123.221.51.234

traceroute to 123.221.51.234 (123.221.51.234): 64 hops max, 52 byte packets

6 [AS2914] 129.250.66.13 0.602 ms

7 [AS2914] 61.200.82.102 0.782 ms

8 [AS4713] 153.149.219.38 1.917 ms

9 [AS4713] 153.149.204.22 3.241 ms

10 [AS4713] 118.23.104.42 2.019 ms

11 [AS4713] 123.221.51.234 4.449 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On August 15, 2026

Traceroute

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123.221.51.0/24

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Traceroute

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123.221.51.0/24

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