{"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":"91.103.136.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/91.103.136.0-91.103.143.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2024-01-12) (only part of the range)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":121003,"date":"2026-06-03T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"MEDIA-SYS SP. Z O.O.","recipient_org":"MEDIA-SYS USLUGI SP. Z O.O.","range":"91.103.138.0/24","log":"RIPE NCC"},{"id":120571,"date":"2026-05-07T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Johannes Wilhelmus Buurman trading as De Hosting Firma","recipient_org":null,"range":"91.103.141.0/24","log":"RIPE NCC"},{"id":43804,"date":"2026-05-07T13:57:44Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Johannes Wilhelmus Buurman trading as De Hosting Firma","recipient_org":"Mission Inbox Inc.","range":"91.103.141.0/24","log":"ARIN"},{"id":91253,"date":"2022-11-25T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"Aufeminin S.A.S","recipient_org":"Television Francaise 1 SA","range":"91.103.136.0/21","log":"RIPE NCC"}],"events":[{"event_id":"ee34739b6b77ef25","registry":"RIPE NCC","report_date":"2024-01-11","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"ipv4","resource":"91.103.136.0/21","start":"91.103.136.0","end":"91.103.143.255","classification":"HOLD_RELEASED","classification_label":"Released from hold (the RIPE NCC lists it as 'available')","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"The RIPE NCC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:14:19+00:00","page":"https://rirtracker.com/ip/91.103.136.0-91.103.143.255/#e-ee34739b6b77ef25","report_page":"https://rirtracker.com/ripe/reports/2024-01-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/91.103.136.0-91.103.143.255.json","observed":"91.103.136.0/21 reserved on 2024-01-10, available on 2024-01-11","explanation":"The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2024-01-12: Added 91.103.136.0/24; 2024-01-12: Added 91.103.137.0/24; 2024-01-12: Added 91.103.138.0/24), so the before-and-after statistics may include it.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240111.bz2","retrieved_at":"2026-10-13T00:20:47+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 91.103.136.0/21 reserved on 2024-01-10, available on 2024-01-11"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240110.bz2","retrieved_at":"2026-10-13T00:20:44+00:00","summary":"RIPE NCC delegated statistics 2024-01-10 (produced 2024-01-10T22:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240111.bz2","retrieved_at":"2026-10-13T00:20:47+00:00","summary":"RIPE NCC delegated statistics 2024-01-11 (produced 2024-01-11T22:59:59+00:00), after the change: available"}]},{"event_id":"d76d2627971deb3f","registry":"RIPE NCC","report_date":"2023-07-13","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"91.103.136.0/21","start":"91.103.136.0","end":"91.103.143.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:40+00:00","page":"https://rirtracker.com/ip/91.103.136.0-91.103.143.255/#e-d76d2627971deb3f","report_page":"https://rirtracker.com/ripe/reports/2023-07-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/91.103.136.0-91.103.143.255.json","observed":"91.103.136.0/21 allocated on 2023-07-12, reserved on 2023-07-13","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2024-01-09","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2006-11-27) on 2023-07-12 and reserved on 2023-07-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2024-01-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230713.bz2","retrieved_at":"2026-10-13T00:06:57+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 91.103.136.0/21 allocated on 2023-07-12, reserved on 2023-07-13"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230712.bz2","retrieved_at":"2026-10-13T00:06:54+00:00","summary":"RIPE NCC delegated statistics 2023-07-12 (produced 2023-07-12T21:59:59+00:00), before the change: allocated (dated 2006-11-27)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230713.bz2","retrieved_at":"2026-10-13T00:06:57+00:00","summary":"RIPE NCC delegated statistics 2023-07-13 (produced 2023-07-13T21:59:59+00:00), after the change: reserved"}]},{"event_id":"16755392e0eb56dd","registry":"RIPE NCC","report_date":"2022-11-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"91.103.136.0/21","start":"91.103.136.0","end":"91.103.143.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"Aufeminin S.A.S","recipient_organization":"Television Francaise 1 SA","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:18+00:00","page":"https://rirtracker.com/ip/91.103.136.0-91.103.143.255/#e-16755392e0eb56dd","report_page":"https://rirtracker.com/ripe/reports/2022-11-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/91.103.136.0-91.103.143.255.json","observed":"Transfer: Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC) on 2022-11-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2022-11-25 19:00 UTC, Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC); resources moved: 91.103.136.0/21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20221124.bz2","retrieved_at":"2026-10-12T23:49:35+00:00","summary":"RIPE NCC delegated statistics 2022-11-24 (produced 2022-11-24T22:59:59+00:00), before the change: allocated (dated 2006-11-27)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20221125.bz2","retrieved_at":"2026-10-12T23:49:38+00:00","summary":"RIPE NCC delegated statistics 2022-11-25 (produced 2022-11-25T22:59:59+00:00), after the change: allocated (dated 2006-11-27)"}]}],"classification_history":{"ee34739b6b77ef25":[{"raw_change_id":495265,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T06:22:28+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2024-01-12: Added 91.103.136.0/24; 2024-01-12: Added 91.103.137.0/24; 2024-01-12: Added 91.103.138.0/24), so the before-and-after statistics may include it."},{"raw_change_id":495265,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:35+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2024-01-12: Added 91.103.136.0/24; 2024-01-12: Added 91.103.137.0/24; 2024-01-12: Added 91.103.138.0/24), so the before-and-after statistics may include it."},{"raw_change_id":495265,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:47+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2024-01-12: Added 91.103.136.0/24; 2024-01-12: Added 91.103.137.0/24; 2024-01-12: Added 91.103.138.0/24), so the before-and-after statistics may include it."},{"raw_change_id":495265,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-14T00:14:19+00:00","current":1,"public_explanation":"The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2024-01-12: Added 91.103.136.0/24; 2024-01-12: Added 91.103.137.0/24; 2024-01-12: Added 91.103.138.0/24), so the before-and-after statistics may include it."}],"d76d2627971deb3f":[{"raw_change_id":485860,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:17:45+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2006-11-27) on 2023-07-12 and reserved on 2023-07-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-01-09. This does not confirm availability."},{"raw_change_id":485860,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:03+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2006-11-27) on 2023-07-12 and reserved on 2023-07-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-01-09. This does not confirm availability."},{"raw_change_id":485860,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:13+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2006-11-27) on 2023-07-12 and reserved on 2023-07-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-01-09. This does not confirm availability."},{"raw_change_id":485860,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:40+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2006-11-27) on 2023-07-12 and reserved on 2023-07-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2024-01-09. This does not confirm availability."}],"16755392e0eb56dd":[{"raw_change_id":91649,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:59:10+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC) on 2022-11-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":91649,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:06+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC) on 2022-11-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":91649,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:30+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC) on 2022-11-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":91649,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:18+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from Aufeminin S.A.S (RIPE NCC) to Television Francaise 1 SA (RIPE NCC) on 2022-11-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}]},"arin_statistics_now":{"status":"allocated (dated 2026-05-07) (only part of the range)"}}