BTW.Media
Daily editionStrategic Internet Intelligence
Sign InRegister

APNIC · RIR Watchdog

IPv6 ULA-central

Start here for the proposal-by-proposal record: what changed, why it mattered, who argued for what, how positions evolved, what was decided, and where the evidence still has gaps.

Source facts

Policy ID
prop-048
RIR
APNIC
Official status
Withdrawn
Normalized status
Withdrawn
Introduced
Apr 20, 2007
Last source update
Oct 13, 2026
Coverage
Partial

Who actually shaped the debate?

3Total participants
1Discussion contributors
2Formal actors
1Discussion messages
1Effective participants
100%Top-five discussion share
1People covering 50%
1People covering 80%

Policy evolution

Debate timeline

  1. Introduced

    Introduced

    Source facts ↗

  2. Official decision

    withdrawn

    withdrawn

    Source facts ↗

Entities

Freshness: Stale
  1. Toshiyuki Hosaka
    Discussion messages1
    First activityNov 21, 2007
    Last activityNov 21, 2007
    First explicit stanceUnknown
    Latest explicit stanceUnknown
    Stance changes0
    Viewpoint consistencyInsufficient evidence to assess consistency
    Other policies6
    Freshness: Stale

    Last research attempt: Oct 4, 2026

    Identity verified: Oct 4, 2026

    JPNIC · Historical
    Manager of both the IP Department and the Internet Policy Department at JPNIC
    conference.apnic.net
    APNIC · Historical
    Chair: Toshiyuki Hosaka
    conference.apnic.net
    JPNIC · Historical
    2002年から2008年までJPNIC事務局員としてIPアドレス事業に従事。
    www.nic.ad.jp
    QTnet · Historical
    現在、株式会社QTnet執行役員経営企画部長。
    www.nic.ad.jp
    JPNIC · Historical
    2018年よりJPNIC理事(地域・非営利分野担当)。
    www.nic.ad.jp
    Discussion messages
    1
    First activity
    Nov 21, 2007
    Last activity
    Nov 21, 2007
    First explicit stance
    Unknown
    Latest explicit stance
    Unknown
    Stance changes
    0
    Viewpoint consistency
    Insufficient evidence to assess consistency
    Other policies
    6

    First explicit stance: Unknown → Latest explicit stance: Unknown · Stance changes: 0

    Viewpoint consistency: Insufficient evidence to assess consistency

    The sole retained observation is a meeting summary that records group consensus outcomes for four proposals. It does not provide Toshiyuki Hosaka’s own positions or a second statement, so it cannot establish longitudinal or cross-policy viewpoint consistency for these records.

    A proposal to prevent the routing of “dark” address space

    Assessment: Insufficient evidence to assess consistency · The message reports that the dark-address-space proposal did not reach consensus. It is a meeting summary and does not establish Toshiyuki Hosaka’s own position; one record cannot establish consistency or a change over time.

    Conditions: The record reports a group or process outcome and does not establish the participant’s personal support, opposition, adoption, or implementation view.

    - Consensus was not reached.

    Application of the HD ratio to IPv4

    Assessment: Insufficient evidence to assess consistency · The message reports no clear consensus on applying the HD ratio to IPv4 and says the proposal should remain open. This is a process summary rather than a stated personal position, and one record cannot establish consistency or a change over time.

    Conditions: The record reports a group or process outcome and does not establish the participant’s personal support, opposition, adoption, or implementation view.

    - There was no clear consensus.

    Expansion of the initial allocation space for existing IPv6 address spaceholders

    Assessment: Insufficient evidence to assess consistency · The message reports that the proposal to expand initial IPv6 allocations reached consensus. The report does not state Toshiyuki Hosaka’s own view, so one record cannot establish consistency or a change over time.

    Conditions: The record reports a group or process outcome and does not establish the participant’s personal support, opposition, adoption, or implementation view.

    - Consensus was reached.

    Internet Assigned Numbers Authority (IANA) policy for allocation of IPv6blocks to Regional InternetRegistries Adopted by all RIRs

    Assessment: Insufficient evidence to assess consistency · The message reports consensus on the revised IANA IPv6 allocation policy with parameter flexibility. This is a meeting outcome reported by the co-chair, not a substantiated personal position, and one record cannot establish consistency or a change over time.

    Conditions: The record reports a group or process outcome and does not establish the participant’s personal support, opposition, adoption, or implementation view.

    - Consensus reached for the revised proposal, with some flexibility of parameters. Flexibility is left for consensus of other regions

    A proposal to prevent the routing of “dark” address space · Expansion of the initial allocation space for existing IPv6 address spaceholders

    Assessment: Insufficient evidence to assess consistency · The summary reports different group outcomes for two proposals, but it does not provide Toshiyuki Hosaka’s own positions on either proposal. The comparison therefore cannot establish a cross-policy consistency or inconsistency finding.

    Conditions: The comparison concerns reported group outcomes, not a verified personal viewpoint.

    - Consensus was not reached.

    - Consensus was reached.

    1. Nov 21, 2007 · Unknown

      [sig-policy] Withdrawn prop-048: IPv6 ULA-central

      Validated evidence is unavailable.

      Source facts ↗
    Per-policy stance timelines:prop-005 · Unknown · Insufficient evidence to assess consistencyprop-020 · Unknown · Insufficient evidence to assess consistencyprop-021 · Unknown · Insufficient evidence to assess consistencyprop-023 · Unknown · Insufficient evidence to assess consistencyprop-026 · Unknown · No explicit position statedprop-042 · Unknown · No explicit position statedprop-048 · Unknown · No explicit position stated

    Total policy messages: 6

  2. Consulintel · Identity unresolved
    Discussion messages0
    First activityUnknown
    Last activityUnknown
    First explicit stanceUnknown
    Latest explicit stanceUnknown
    Stance changes0
    Viewpoint consistencyNo explicit position stated
    Other policies0
  3. Jordi Palet Martinez · Identity unresolved
    Discussion messages0
    First activityUnknown
    Last activityUnknown
    First explicit stanceUnknown
    Latest explicit stanceUnknown
    Stance changes0
    Viewpoint consistencyNo explicit position stated
    Other policies0

Sources and coverage

Official policy sources

Public discussion archives

  • apnic-sig-policy
    Earliest captured
    Jun 1, 2001
    Latest captured
    Sep 21, 2026
    Last refresh
    Aug 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    405
    Known gaps
    36
  • apnic-sig-policy
    Earliest captured
    Jun 1, 2001
    Latest captured
    Sep 21, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    3,626
    Known gaps
    0
  • www.apnic.net
  • conference.apnic.net
  • apnic-academy-talk-apnic.net
    Earliest captured
    Jan 12, 2023
    Latest captured
    Jan 19, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,128
    Known gaps
    0
  • apnic-afg-community-apnic.foundation
    Earliest captured
    Sep 27, 2023
    Latest captured
    Jun 24, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,084
    Known gaps
    0
  • apnic-apac-ict-women-apnic.net
    Earliest captured
    Oct 22, 2024
    Latest captured
    Aug 11, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,576
    Known gaps
    0
  • apnic-apix-chair-apnic.net
    Earliest captured
    Unknown
    Latest captured
    Unknown
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    0
    Known gaps
    0
  • apnic-apix-secretary-apnic.net
    Earliest captured
    Unknown
    Latest captured
    Unknown
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    0
    Known gaps
    0
  • apnic-apix-treasurer-apnic.net
    Earliest captured
    Unknown
    Latest captured
    Unknown
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    0
    Known gaps
    0
  • apnic-apnic-alumni-apnic.net
    Earliest captured
    Feb 14, 2024
    Latest captured
    Jul 14, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,584
    Known gaps
    0
  • apnic-apnic-announce-apnic.net
    Earliest captured
    Jun 11, 2025
    Latest captured
    Sep 3, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,936
    Known gaps
    0
  • apnic-apnic-foundation-discuss-apnic.foundation
    Earliest captured
    Sep 12, 2022
    Latest captured
    Mar 11, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,220
    Known gaps
    0
  • apnic-apnic-services-apnic.net
    Earliest captured
    Aug 31, 2020
    Latest captured
    Aug 4, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,666
    Known gaps
    0
  • apnic-apnic-talk-lists.apnic.net
    Earliest captured
    Apr 15, 2004
    Latest captured
    Sep 8, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,777
    Known gaps
    0
  • apnic-apnic-transfers-apnic.net
    Earliest captured
    Sep 21, 2012
    Latest captured
    Feb 22, 2025
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,623
    Known gaps
    0
  • apnic-bgp-stats-lists.apnic.net
    Earliest captured
    Aug 30, 2026
    Latest captured
    Sep 15, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    3,800
    Known gaps
    0
  • apnic-community-elections-apnic.net
    Earliest captured
    Nov 12, 2021
    Latest captured
    Nov 22, 2021
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    10
    Known gaps
    0
  • apnic-community-events-apnic.net
    Earliest captured
    May 9, 2025
    Latest captured
    Aug 19, 2025
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,785
    Known gaps
    1
  • apnic-diversity-in-leadership-apnic.net
    Earliest captured
    Jun 9, 2026
    Latest captured
    Jul 8, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    133
    Known gaps
    0
  • apnic-ianaxfer-apnic.net
    Earliest captured
    Mar 27, 2014
    Latest captured
    Jul 11, 2019
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,646
    Known gaps
    0
  • apnic-icp-2review-apnic.net
    Earliest captured
    Apr 24, 2025
    Latest captured
    Sep 1, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,098
    Known gaps
    0
  • apnic-measurement-apnic.net
    Earliest captured
    May 31, 2023
    Latest captured
    Mar 8, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,652
    Known gaps
    0
  • apnic-mvnog-apnic.net
    Earliest captured
    Feb 5, 2026
    Latest captured
    Sep 28, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    148
    Known gaps
    0
  • apnic-orbit-discuss-apnic.net
    Earliest captured
    Sep 13, 2022
    Latest captured
    Nov 13, 2022
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    674
    Known gaps
    1
  • apnic-pngnog-apnic.net
    Earliest captured
    Dec 26, 2019
    Latest captured
    Oct 28, 2024
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,459
    Known gaps
    1
  • apnic-security-discuss-apnic.net
    Earliest captured
    Mar 27, 2024
    Latest captured
    Aug 16, 2024
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,468
    Known gaps
    0
  • apnic-sig-cooperation-apnic.net
    Earliest captured
    Jan 15, 2015
    Latest captured
    Aug 25, 2026
    Last refresh
    Oct 12, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,671
    Known gaps
    1
  • apnic-sig-guidelines-review-apnic.net
    Earliest captured
    Jun 3, 2026
    Latest captured
    Sep 2, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    1,383
    Known gaps
    1
  • apnic-sig-nir-lists.apnic.net
    Earliest captured
    May 13, 2004
    Latest captured
    Sep 4, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,771
    Known gaps
    0
  • apnic-sig-routingsecurity-apnic.net
    Earliest captured
    Apr 3, 2020
    Latest captured
    Aug 25, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,526
    Known gaps
    0
  • apnic-user-feedback-group-apnic.net
    Earliest captured
    Sep 12, 2022
    Latest captured
    Jul 14, 2026
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,227
    Known gaps
    0
  • apnic-wg-pdr-apnic.net
    Earliest captured
    Mar 29, 2021
    Latest captured
    Sep 21, 2022
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,217
    Known gaps
    1
  • apnic-youth4ig-lists.apnic.net
    Earliest captured
    Feb 19, 2020
    Latest captured
    Jul 28, 2023
    Last refresh
    Oct 13, 2026
    Coverage
    Source coverage is incomplete.
    Loading
    2,580
    Known gaps
    0

Coverage

Partial
Earliest captured: Jun 1, 2001
Latest captured: Oct 13, 2026

Freshness

Freshness: Stale · Last refresh:

Known gaps

  • www.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-policy: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-policy: Source coverage is incomplete. · The source boundary has not yet been reached.
  • www.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • conference.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-academy-talk-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-afg-community-apnic.foundation: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apac-ict-women-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apix-chair-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apix-secretary-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apix-treasurer-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-alumni-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-announce-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-foundation-discuss-apnic.foundation: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-services-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-talk-lists.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-apnic-transfers-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-bgp-stats-lists.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-community-elections-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-community-events-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-diversity-in-leadership-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-ianaxfer-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-icp-2review-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-measurement-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-mvnog-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-orbit-discuss-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-pngnog-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-security-discuss-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-cooperation-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-guidelines-review-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-nir-lists.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-sig-routingsecurity-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-user-feedback-group-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-wg-pdr-apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.
  • apnic-youth4ig-lists.apnic.net: Source coverage is incomplete. · The source boundary has not yet been reached.