External and interwiki links pointing to the old URL to the account creation tool.

acc_extlinks

MariaDB [enwiki_p]> SELECT page_namespace, page_title FROM `externallinks` JOIN `page` ON page_id = el_from WHERE (el_to LIKE 'http://toolserver.org/~acc%' OR el_to LIKE 'https://toolserver.org/~acc%') AND page_namespace > 3 ORDER BY page_namespace;
+----------------+-------------------------------------------------------------------------+
| page_namespace | page_title                                                              |
+----------------+-------------------------------------------------------------------------+
|              4 | Village_pump_(proposals)/Archive_84                                     |
|              4 | Request_an_account/Guide                                                |
|              4 | Village_pump_(policy)/Archive_77                                        |
|              4 | Village_pump_(policy)/Archive_77                                        |
|              4 | Village_pump_(proposals)/Archive_105                                    |
|              4 | Village_pump_(proposals)/Account_security                               |
|              4 | Administrators'_noticeboard/Archive215                                  |
|              4 | Village_pump_(miscellaneous)/Archive_41                                 |
|              4 | Request_an_account/Administrators                                       |
|              4 | Request_an_account/Administrators                                       |
|              4 | Help_desk/Archives/2010_February_8                                      |
|              4 | Account_creator                                                         |
|              4 | Village_pump_(miscellaneous)/Archive_43                                 |
|              4 | Village_pump_(miscellaneous)/Archive_44                                 |
|              4 | Village_pump_(proposals)/Archive_69                                     |
|              4 | Administrators'_noticeboard/2008_IWF_action                             |
|              4 | Bureaucrats'_noticeboard/Archive_24                                     |
|              4 | Village_pump_(proposals)/Archive_70                                     |
|              4 | Help_desk/Archives/2010_February_8                                      |
|              4 | Village_pump_(technical)/Archive_110                                    |
|              4 | Arbitration_Committee/CheckUser_and_Oversight/2013_CUOS_appointments    |
|              4 | Village_pump_(proposals)/Archive_84                                     |
|              4 | Village_pump_(technical)/Archive_110                                    |
|              4 | Village_pump_(technical)/Archive_110                                    |
|              4 | Arbitration_Committee/CheckUser_and_Oversight/2013_CUOS_appointments/CU |
|              4 | Village_pump_(policy)/Archive_93                                        |
|              4 | Request_an_account/Guide                                                |
|              4 | Request_an_account/Changelog                                            |
|              4 | Administrators'_noticeboard/Archive250                                  |
|              4 | Village_pump_(proposals)/Archive_65                                     |
|              4 | Requests_for_adminship/Jeff_G.                                          |
|              4 | Administrators'_noticeboard/Archive252                                  |
|              4 | Miscellany_for_deletion/Wikipedia:Request_an_account/Administrators     |
|              4 | Miscellany_for_deletion/Wikipedia:ACC_tool_users'_pledge                |
|              4 | WikiProject_user_warnings/old_details                                   |
|              4 | Requests_for_adminship/Mlpearc                                          |
|              4 | Administrators'_noticeboard/Archive242                                  |
|              4 | Userboxes/Wikipedia/User_groups                                         |
|              4 | Bot_owners'_noticeboard/Archive_5                                       |
|              4 | Online_Ambassadors/Apply/Riley_Huntley                                  |
|              4 | Administrators'_noticeboard/Archive242                                  |
|              4 | Bots/Requests_for_approval/WelcomerBot                                  |
|              4 | Template_messages/User_talk_namespace/Blocks                            |
|              4 | Administrators'_noticeboard/Archive253                                  |
|              4 | Why_create_an_account?                                                  |
|              4 | Help_desk/Archives/2010_May_1                                           |
|              4 | Administrators'_noticeboard/IncidentArchive587                          |
|              4 | Sockpuppet_investigations                                               |
|              4 | Help_desk/Archives/2010_January_19                                      |
|              4 | Administrators'_noticeboard/Incidents/Soft_blocking_AOL                 |
|              4 | Request_an_account/Changelog                                            |
|              4 | Request_an_account/Guide                                                |
|              4 | Help_desk/Archives/2010_February_8                                      |
|              4 | Help_desk/Archives/2010_April_20                                        |
|              4 | Changing_username/Usurpations/Rejected/12                               |
|              4 | Abuse_response/206.131.49.254                                           |
|              5 | Account_creator                                                         |
|              5 | Username_policy/Archive_17                                              |
|              5 | Help_desk/Archive_10                                                    |
|              5 | Teahouse                                                                |
|              5 | Requests_for_permissions/Archive_4                                      |
|              5 | Teahouse/Archive_6                                                      |
|              5 | Request_an_account                                                      |
|              5 | Account_creator                                                         |
|              5 | Request_an_account/Archive_4                                            |
|              5 | Request_an_account/Guide/Archive_1                                      |
|              5 | File_mover/proposal                                                     |
|              5 | Request_an_account/Guide/Archive_1                                      |
|              5 | Sockpuppet_investigations/Archives/Archive10                            |
|              5 | Request_an_account/Guide/Archive_1                                      |
|              5 | Request_an_account/Guide/Archive_1                                      |
|              5 | Arbitration_Committee/Archive_16                                        |
|              5 | Request_an_account/Guide/Archive_1                                      |
|              5 | Request_an_account/Procedures                                           |
|              5 | Sockpuppet_investigations/Archives/Archive9                             |
|              5 | New_contributors'_help_page                                             |
|              5 | Sockpuppet_investigations/Archives/Archive9                             |
|              5 | Help_desk                                                               |
|              5 | Usernames_for_administrator_attention                                   |
|              5 | Why_create_an_account?                                                  |
|              5 | Abuse_response/206.131.49.254                                           |
|              5 | Request_an_account/Guide                                                |
|              8 | Cantcreateaccount-text                                                  |
|              8 | Ipbreason-dropdown                                                      |
|              8 | Ipbreason-dropdown/Templates/anonblock                                  |
|              9 | Titleblacklist/Archive_2                                                |
|             10 | Colocationwebhost                                                       |
|             10 | Googleappspotblock                                                      |
|             10 | ACC-backlog                                                             |
|             10 | ACC-access                                                              |
|             10 | Acc                                                                     |
|             10 | Acc/doc                                                                 |
|             10 | UKBlock                                                                 |
|             10 | Uw-acc                                                                  |
|             10 | User_acct                                                               |
|             10 | User_wikipedia/acctoolserveruser                                        |
|             10 | User_wikipedia/accountcreator                                           |
|             10 | Anonblock                                                               |
|             10 | Editnotices/Page/Wikipedia:Requests_for_permissions/Account_creator     |
|             10 | ACC-backlog                                                             |
|             10 | Checkuserblock-Alto                                                     |
|             10 | Account_creator_declined                                                |
|             10 | Uw-acc                                                                  |
|             10 | Checkuserblock-Synetrix                                                 |
|             11 | Googleappspotblock                                                      |
|             11 | Anonblock                                                               |
|             12 | I_have_been_blocked                                                     |
+----------------+-------------------------------------------------------------------------+
107 rows in set (0.14 sec)

MariaDB [enwiki_p]> SELECT page_namespace, page_title FROM `iwlinks` JOIN `page` ON page_id = iwl_from WHERE iwl_prefix = 'tools' AND iwl_title LIKE '~acc%' AND page_namespace > 3 ORDER BY page_namespace;
+----------------+--------------------------------------------------------------------------------------------------------+
| page_namespace | page_title                                                                                             |
+----------------+--------------------------------------------------------------------------------------------------------+
|              4 | April_Fools/April_Fools'_Day_2011/My76StratRFA                                                         |
|              4 | Miscellany_for_deletion/User:Ironholds                                                                 |
|              4 | Pending_changes/Request_for_Comment_February_2011/Archive_3                                            |
|              4 | Requests_for_adminship/HJ_Mitchell_3                                                                   |
|              4 | Requests_for_adminship/Logan                                                                           |
|              4 | Articles_for_deletion/Log/2011_August_10                                                               |
|              4 | Articles_for_deletion/SummerSlam_(2011)                                                                |
|              4 | Requests_for_adminship/Fluffernutter                                                                   |
|              4 | Administrators'_noticeboard/Archive233                                                                 |
|              4 | Bureaucrats'_noticeboard/Archive_25                                                                    |
|              4 | Administrators'_noticeboard/Archive63                                                                  |
|              4 | Help_desk/Archives/2013_April_11                                                                       |
|              4 | WikiProject_user_warnings/old_details                                                                  |
|              4 | MediaWiki_messages/Archive_4                                                                           |
|              4 | Abuse_reports/208.66.198.98                                                                            |
|              4 | Meetup/UK                                                                                              |
|              4 | Toolserver                                                                                             |
|              4 | Template_messages/User_talk_namespace/Blocks                                                           |
|              4 | Request_an_account/Guide                                                                               |
|              4 | Editor_review/Guide                                                                                    |
|              4 | Huggle/Wine                                                                                            |
|              4 | Request_an_account/Guide                                                                               |
|              4 | Help_desk/Archives/2009_May_8                                                                          |
|              4 | Request_an_account/Guide                                                                               |
|              4 | Village_pump_(proposals)/Archive_65                                                                    |
|              4 | Request_an_account/Guide                                                                               |
|              4 | Abuse_response/169.204.189.71                                                                          |
|              4 | Request_an_account/Changelog                                                                           |
|              4 | Abuse_response/206.131.49.254                                                                          |
|              4 | Request_an_account/Changelog/r3334                                                                     |
|              4 | Request_an_account/Procedures                                                                          |
|              4 | Deletion_review/Log/2011_March                                                                         |
|              4 | Administrators'_noticeboard/Archive215                                                                 |
|              4 | Administrators'_noticeboard/Archive222                                                                 |
|              4 | Request_an_account/Guide                                                                               |
|              4 | Deletion_review/Log/2011_March_16                                                                      |
|              4 | Miscellany_for_deletion/Wikipedia:Credo_accounts                                                       |
|              4 | Miscellany_for_deletion/Wikipedia:Administrators'_noticeboard                                          |
|              5 | Abuse_response/169.204.189.71                                                                          |
|              5 | Request_an_account/Archive_5                                                                           |
|              5 | WikiProject_United_States_Public_Policy/Courses/Spring_2011/Seminar_in_Public_Affairs_(Byron_E._Price) |
|              5 | Abuse_response/206.131.49.254                                                                          |
|              8 | Ipbreason-dropdown                                                                                     |
|              8 | Ipbreason-dropdown/Templates/schoolblock                                                               |
|              8 | Ipbreason-dropdown                                                                                     |
|             10 | School_block/sandbox                                                                                   |
|             10 | School_block                                                                                           |
|             10 | CheckUser_block                                                                                        |
|             10 | Rangeblocked                                                                                           |
|             10 | Account_creator_declined                                                                               |
+----------------+--------------------------------------------------------------------------------------------------------+
50 rows in set (0.60 sec)

MariaDB [enwiki_p]> SELECT ipb_address FROM `ipblocks` WHERE ipb_reason LIKE '%toolserver.org/~acc%';
+-----------------+
| ipb_address     |
+-----------------+
| 198.38.10.1     |
| 80.239.242.0/23 |
| 23.241.74.200   |
+-----------------+
3 rows in set (0.86 sec)