Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.
2011-06-07ARIN+ AddApparent new issuanceObserved only
ARIN-Issued
Add 204.28.223.0-204.28.223.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it not issued on 2011-06-06 and assigned (dated 2011-06-06) on 2011-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN. Another change to this range was reported the day before or after (2011-06-06: Remove 69.57.208.0-216.250.127.255; 2011-06-06: Add 204.28.223.0-204.28.223.255), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2011-06-07: "Add 204.28.223.0-204.28.223.255"source · retrieved
BeforeARIN delegated statistics 2011-06-06, before the report: not issuedsource · retrieved
AfterARIN delegated statistics 2011-06-08, after the report: assigned (dated 2011-06-06)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.0)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.1)
: Apparent new issuance, observed only (classifier 1.3.2)
: Apparent new issuance, observed only (classifier 1.4.0) current
2011-06-06ARIN+ AddApparent new issuanceObserved only
ARIN-Issued
Add 204.28.223.0-204.28.223.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it not issued on 2011-06-05 and assigned (dated 2011-06-06) on 2011-06-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN. Another change to this range was reported the day before or after (2011-06-07: Add 204.28.223.0-204.28.223.255), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2011-06-06: "Add 204.28.223.0-204.28.223.255"source · retrieved
BeforeARIN delegated statistics 2011-06-05, before the report: not issuedsource · retrieved
AfterARIN delegated statistics 2011-06-07, after the report: assigned (dated 2011-06-06)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, observed only (classifier 1.3.0)
: Apparent new issuance, observed only (classifier 1.3.1)
: Apparent new issuance, observed only (classifier 1.3.2)
: Apparent new issuance, observed only (classifier 1.4.0) current
Transfer records
No transfer log has a transfer of any part of this IPv4 range.
RDAP lookups
Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.