nttpc.ne.jp

The registry answered, but its answer does not say whether the name is taken. Its full answer is below.

Checked

WHOIS

[ JPRS database provides information on network administration. Its use is    ]
[ restricted to network administration purposes. For further information,     ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e'     ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'.                 ]
Domain Information: [ドメイン情報]
a. [ドメイン名]                 NTTPC.NE.JP
b. [ねっとわーくさーびすめい]   あいえすぴーじぎょうしゃむけねっとわーくてい
                                きょうさーびす
c. [ネットワークサービス名]     ISP事業者向けネットワーク提供サービス
d. [Network Service Name]       Network Services for ISPs
k. [組織種別]                   ネットワークサービス
l. [Organization Type]          Network Service
m. [登録担当者]                 YA6489JP
n. [技術連絡担当者]             YA6489JP
p. [ネームサーバ]               ns1.sphere.ad.jp
p. [ネームサーバ]               ns2.sphere.ad.jp
s. [署名鍵]                     
[状態]                          Connected (2027/08/31)
[登録年月日]                    1998/08/11
[接続年月日]                    1998/08/21
[最終更新]                      2026/09/01 01:02:35 (JST)