{"classifier_version":"1.4.0","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by ARIN, the RIPE NCC, APNIC, LACNIC, AFRINIC, the Number Resource Organization (NRO), or any other Regional Internet Registry. Classifications and hold-expiration dates are evidence-based interpretations and do not constitute confirmation that a resource is available for issuance or transfer.","resource":"203.55.138.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/203.55.138.0-203.55.138.255/","statistics_now":{"registry":"APNIC","status":"assigned (dated 1996-12-13)"},"current_holder":{"rir":"APNIC","org":"CAMPAIGN MONITOR PTY LTD","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":123921,"date":"2013-11-28T23:52:18Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"COMPUSAFE NETWORKS PTY LTD","recipient_org":"CAMPAIGN MONITOR PTY LTD","range":"203.55.138.0/24","log":"APNIC"}],"events":[{"event_id":"90a7f71429c8f181","registry":"APNIC","report_date":"2013-11-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"203.55.138.0/24","start":"203.55.138.0","end":"203.55.138.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"COMPUSAFE NETWORKS PTY LTD","recipient_organization":"CAMPAIGN MONITOR PTY LTD","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:29+00:00","page":"https://rirtracker.com/ip/203.55.138.0-203.55.138.255/#e-90a7f71429c8f181","report_page":"https://rirtracker.com/apnic/reports/2013-11-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/203.55.138.0-203.55.138.255.json","observed":"Transfer: COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC)","explanation":"APNIC's transfer log records a transfer from COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2013-11-28 23:52 UTC. The registration changed hands; it is not a new allocation from APNIC.","evidence":[{"type":"transfer","url":"https://ftp.apnic.net/stats/apnic/transfers/transfers_latest.json","retrieved_at":"2026-10-13T18:17:16+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2013-11-28 23:52 UTC, COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC); resources moved: 203.55.138.0/24"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2013/delegated-apnic-extended-20131129.gz","retrieved_at":"2026-10-12T20:43:57+00:00","summary":"APNIC delegated statistics 2013-11-29, before the change: assigned (dated 1996-12-13)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2013/delegated-apnic-extended-20131130.gz","retrieved_at":"2026-10-12T20:44:00+00:00","summary":"APNIC delegated statistics 2013-11-30, after the change: assigned (dated 1996-12-13)"}]}],"classification_history":{"90a7f71429c8f181":[{"raw_change_id":32316,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:34:28+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2013-11-28 23:52 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":32316,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:46+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2013-11-28 23:52 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":32316,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:55+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2013-11-28 23:52 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":32316,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:29+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from COMPUSAFE NETWORKS PTY LTD (APNIC) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2013-11-28 23:52 UTC. The registration changed hands; it is not a new allocation from APNIC."}]},"arin_statistics_now":{"status":"not listed"}}