{
  "schema": "ipv4-transfer-public-aggregates-v1",
  "method_version": "monthly-ipv4-v1",
  "report_id": "37724ad5659fedc3f6875cf1",
  "through": "2026-09",
  "period": {
    "start": "2026-01-01",
    "end": "2026-09-30"
  },
  "comparison_period": {
    "start": "2025-01-01",
    "end": "2025-09-30"
  },
  "coverage": {
    "recipient_rirs": [
      "arin",
      "ripe"
    ],
    "rule": "recipient-registry-only-v1",
    "global_market": false
  },
  "definitions": {
    "addresses": "Address movements summed over records; not distinct inventory over the whole period.",
    "records": "Canonical recipient-registry records, not confirmed purchases or corporate transactions.",
    "counterparty_groups": "Exact published source/recipient name pairs; subsidiaries are not merged. Unnamed records remain separate.",
    "block_distribution": "Union ranges within each record, then canonical CIDRs. Size-bucket record counts overlap.",
    "ma": "MERGER_ACQUISITION as published; not an independent corporate deal classification.",
    "rir": "Receiving registry attribution; not end-user or deployment geography.",
    "source_document_sha256": "SHA-256 of UTF-8 JSON with sorted keys, ensure_ascii=false, separators=(',', ':').",
    "verification": "Aggregates allow arithmetic checks. Reconstructing all events requires the archived raw snapshots; live URLs may change."
  },
  "sources": [
    {
      "id": "arin",
      "url": "https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json",
      "production_date": "2026-10-03T03:59:13+00:00",
      "document_sha256": "48221a74af5b480b427feab993eb594c5955c1bef465106d197f0be1474c5c64"
    },
    {
      "id": "ripe",
      "url": "https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json",
      "production_date": "2026-10-03T18:00:06.540535+00:00",
      "document_sha256": "4b8e8230f8a1866f59b6921c8febe17d22afbda77f34afece60a30ae6e7e71b4"
    }
  ],
  "current": {
    "records": 6176,
    "addresses": 65698816,
    "median_record_addresses": 1024.0,
    "mean_record_addresses": 10637.761658031088,
    "top1_volume_share_pct": 3.192069701834505,
    "top5_volume_share_pct": 14.364313658255272,
    "without_top1_addresses": 63601664,
    "without_top5_addresses": 56261632,
    "counterparty_groups": 3315,
    "top1_group_volume_share_pct": 13.96530494552596,
    "top5_group_volume_share_pct": 43.440514970619866,
    "without_top1_group_addresses": 56523776,
    "without_top5_group_addresses": 37158912,
    "ma_records": 2001,
    "ma_addresses": 28003968,
    "ma_record_share_pct": 32.39961139896373,
    "ma_volume_share_pct": 42.62476815411711,
    "other_records": 4175,
    "other_addresses": 37694848,
    "by_recipient_rir": {
      "arin": {
        "records": 2238,
        "addresses": 40139264
      },
      "ripe": {
        "records": 3938,
        "addresses": 25559552
      }
    },
    "block_distribution": {
      "/16+": {
        "addresses": 49872896,
        "blocks": 325,
        "records": 325,
        "volume_share_pct": 75.91140759675181,
        "record_share_pct": 5.262305699481865
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        "addresses": 3768320,
        "blocks": 115,
        "records": 115,
        "volume_share_pct": 5.735750245483876,
        "record_share_pct": 1.8620466321243523
      },
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        "addresses": 3440640,
        "blocks": 210,
        "records": 210,
        "volume_share_pct": 5.236989354572235,
        "record_share_pct": 3.400259067357513
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        "addresses": 3284992,
        "blocks": 401,
        "records": 401,
        "volume_share_pct": 5.000077931389205,
        "record_share_pct": 6.492875647668394
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        "addresses": 2060288,
        "blocks": 503,
        "records": 498,
        "volume_share_pct": 3.1359591016069452,
        "record_share_pct": 8.063471502590673
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        "addresses": 1007616,
        "blocks": 492,
        "records": 491,
        "volume_share_pct": 1.5336897395532973,
        "record_share_pct": 7.950129533678757
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        "addresses": 1280000,
        "blocks": 1250,
        "records": 1244,
        "volume_share_pct": 1.9482847301235993,
        "record_share_pct": 20.142487046632123
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      "/23": {
        "addresses": 414720,
        "blocks": 810,
        "records": 797,
        "volume_share_pct": 0.6312442525600461,
        "record_share_pct": 12.904792746113989
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      "/24": {
        "addresses": 569088,
        "blocks": 2223,
        "records": 2167,
        "volume_share_pct": 0.8662073910129522,
        "record_share_pct": 35.08743523316062
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      "/25": {
        "addresses": 256,
        "blocks": 2,
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        "volume_share_pct": 0.0003896569460247198,
        "record_share_pct": 0.03238341968911917
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    },
    "top_counterparty_groups": [
      {
        "source_organization": "T-Mobile USA, Inc.",
        "recipient_organization": "Amazon.com, Inc.",
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        "volume_share_pct": 13.96530494552596
      },
      {
        "source_organization": "Vodafone Italia S.p.A.",
        "recipient_organization": "Fastweb SpA",
        "records": 21,
        "addresses": 5604352,
        "volume_share_pct": 8.530369862373167
      },
      {
        "source_organization": "Frontier Communications of America, Inc.",
        "recipient_organization": "Verizon Business",
        "records": 72,
        "addresses": 5298176,
        "volume_share_pct": 8.064340154927601
      },
      {
        "source_organization": "Frontier Communications Corporation",
        "recipient_organization": "Verizon Business",
        "records": 17,
        "addresses": 4947968,
        "volume_share_pct": 7.531289452765785
      },
      {
        "source_organization": "Ziggo B.V.",
        "recipient_organization": "Vodafone Libertel B.V.",
        "records": 71,
        "addresses": 3514368,
        "volume_share_pct": 5.349210555027354
      }
    ]
  },
  "previous": {
    "records": 6514,
    "addresses": 116876064,
    "median_record_addresses": 1024.0,
    "mean_record_addresses": 17942.287995087503,
    "top1_volume_share_pct": 14.354706537687647,
    "top5_volume_share_pct": 35.88676634421912,
    "without_top1_addresses": 100098848,
    "without_top5_addresses": 74933024,
    "counterparty_groups": 2927,
    "top1_group_volume_share_pct": 21.98546316549469,
    "top5_group_volume_share_pct": 55.272059812007356,
    "without_top1_group_addresses": 91180320,
    "without_top5_group_addresses": 52276256,
    "ma_records": 1576,
    "ma_addresses": 75002624,
    "ma_record_share_pct": 24.19404359840344,
    "ma_volume_share_pct": 64.17278391578964,
    "other_records": 4938,
    "other_addresses": 41873440,
    "by_recipient_rir": {
      "arin": {
        "records": 3021,
        "addresses": 100544256
      },
      "ripe": {
        "records": 3493,
        "addresses": 16331808
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    },
    "block_distribution": {
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        "addresses": 99811328,
        "blocks": 557,
        "records": 557,
        "volume_share_pct": 85.39928928475894,
        "record_share_pct": 8.55081363217685
      },
      "/17": {
        "addresses": 4390912,
        "blocks": 134,
        "records": 134,
        "volume_share_pct": 3.756895851660439,
        "record_share_pct": 2.057107767884556
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      "/18": {
        "addresses": 3424256,
        "blocks": 209,
        "records": 209,
        "volume_share_pct": 2.929818033571014,
        "record_share_pct": 3.208474055879644
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      "/19": {
        "addresses": 3530752,
        "blocks": 431,
        "records": 431,
        "volume_share_pct": 3.020936776241883,
        "record_share_pct": 6.616518268345103
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      "/20": {
        "addresses": 2265088,
        "blocks": 553,
        "records": 550,
        "volume_share_pct": 1.9380255652688647,
        "record_share_pct": 8.443352778630642
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      "/21": {
        "addresses": 1067008,
        "blocks": 521,
        "records": 514,
        "volume_share_pct": 0.9129397102215899,
        "record_share_pct": 7.890696960393
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      "/22": {
        "addresses": 1432576,
        "blocks": 1399,
        "records": 1381,
        "volume_share_pct": 1.2257223172744762,
        "record_share_pct": 21.20049124961621
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      "/23": {
        "addresses": 430080,
        "blocks": 840,
        "records": 810,
        "volume_share_pct": 0.3679795377092781,
        "record_share_pct": 12.434755910346945
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      "/24": {
        "addresses": 523520,
        "blocks": 2045,
        "records": 1994,
        "volume_share_pct": 0.44792747298540103,
        "record_share_pct": 30.610991710162725
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      "/25": {
        "addresses": 512,
        "blocks": 4,
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        "volume_share_pct": 0.00043807087822533104,
        "record_share_pct": 0.06140620202640467
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        "addresses": 32,
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        "volume_share_pct": 2.737942988908319e-05,
        "record_share_pct": 0.015351550506601168
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    },
    "top_counterparty_groups": [
      {
        "source_organization": "PSINet, Inc.",
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        "addresses": 25695744,
        "volume_share_pct": 21.98546316549469
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      {
        "source_organization": "AT&T Services, Inc.",
        "recipient_organization": "AT&T Enterprises, LLC",
        "records": 12,
        "addresses": 17825792,
        "volume_share_pct": 15.251875696293126
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      {
        "source_organization": "AT&T Mobility LLC",
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        "records": 20,
        "addresses": 8743168,
        "volume_share_pct": 7.4807173520148655
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      {
        "source_organization": "V.TAL - REDE NEUTRA DE TELECOMUNICACOES S.A.",
        "recipient_organization": "Globenet Cabos Submarinos America Inc.",
        "records": 430,
        "addresses": 7110656,
        "volume_share_pct": 6.083928356793398
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      {
        "source_organization": "Shaw Communications Inc.",
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        "records": 17,
        "addresses": 5224448,
        "volume_share_pct": 4.470075241411278
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  "monthly_series": [
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      "month": "2026-01",
      "records": 518,
      "addresses": 6940160,
      "median_record_addresses": 512.0,
      "mean_record_addresses": 13397.992277992278,
      "top1_volume_share_pct": 15.108815935079306,
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      "without_top1_addresses": 5891584,
      "without_top5_addresses": 3794432,
      "counterparty_groups": 309,
      "top1_group_volume_share_pct": 80.75248985614165,
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      "without_top1_group_addresses": 1335808,
      "without_top5_group_addresses": 638464,
      "ma_records": 99,
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      "other_records": 419,
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      "by_recipient_rir": {
        "arin": {
          "records": 145,
          "addresses": 870912
        },
        "ripe": {
          "records": 373,
          "addresses": 6069248
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      },
      "block_distribution": {
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          "addresses": 6160384,
          "blocks": 27,
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          "addresses": 163840,
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          "addresses": 98304,
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          "addresses": 114688,
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        "/21": {
          "addresses": 81920,
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          "addresses": 98304,
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      },
      "top_counterparty_groups": [
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        {
          "source_organization": "FREE SAS",
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        {
          "source_organization": "Baku Telephone Communication LLC",
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        {
          "source_organization": "Optimum WiFi",
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        {
          "source_organization": "Munin Systems Inc.",
          "recipient_organization": "Ericsson Inc.",
          "records": 1,
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      ]
    },
    {
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      "without_top1_addresses": 9466112,
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      "block_distribution": {
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          "addresses": 10485760,
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          "addresses": 196608,
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      "top_counterparty_groups": [
        {
          "source_organization": "T-Mobile USA, Inc.",
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        {
          "source_organization": "EE Limited",
          "recipient_organization": "Hetzner Online GmbH",
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        {
          "source_organization": "EE Limited",
          "recipient_organization": "Hostinger Operations UAB",
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        {
          "source_organization": "Plusnet GmbH",
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          "records": 2,
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        {
          "source_organization": "SunTrust Banks, Inc.",
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          "records": 2,
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      "month": "2026-03",
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}