[lacnog] Weekly Global IPv6 Routing Table Summary

Jue Mar 12 11:30:59 -03 2026

This is an automated weekly mailing describing the state of the Global
IPv6 Routing Table as seen from route-views.routeviews.org

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Global Analysis Summary
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  BGP routing table entries examined: 244694
    Prefix with the most prepends: {'PREFIX': '2402:4160::/32', 'Count': 29, 'AS': '154448'}
    Unidentified prefixes: 0
    Number of AS_SET found in the Routing Table: 0
    Longest Global AS PATH: 45
    Prefixes identified as IANA: 8
    Global Average Prefix Length: 42.93
    Number of /48s globally: 111550
    Prefixes after maximum aggregation (per Origin AS): 135974
    IPv6 deaggregation factor: 1.81

    Global - Prefixes with a valid RPKI status: 163671
    Global - Prefixes with an invalid RPKI status: 1032
    Global - ROA‑uncovered prefixes: 79991

  Total ASes present in the Internet Routing Table: 36084
    Global - Average number of prefixes according to the number of ASes: 6.78

    Number of 32-bit ASes globally: 23131
    Number of 16-bit ASes globally: 12953

    Number of ASes that are only origin: 32886
      Number of 16-bit ASes that are only origin: 11033
      Number of 32-bit ASes that are only origin: 21853

    Number of ASes that are only transit: 179
      Number of 16-bit ASes that are only transit: 120
      Number of 32-bit ASes that are only transit: 59

    Number of Transit ASes that also announce prefixes: 3198

    Number of bogon 16-bit ASNs visible in the Routing Table: 0

    Number of bogon 32-bit ASNs visible in the Routing Table: 0

    Unidentified ASes: 0

APNIC Region Analysis Summary
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  APNIC IPv6 prefixes: 2001:200::/23 2001:c00::/23 2001:e00::/23 2001:4400::/23 2001:8000::/19 2001:a000::/20 2001:b000::/20 2400::/12 2410::/12

  Number of prefixes analyzed in APNIC: 85979
    Average number of prefixes according to the number of ASes in APNIC: 8.94
    Average Prefix Length in APNIC: 43.55
    Number of /48s in APNIC: 34840
    Longest PATH in APNIC: 33
    Prefix with most prepends in APNIC {'PREFIX': '2402:4160::/32', 'Count': 29, 'AS': '154448'}

    Prefixes after maximum aggregation (per Origin AS): 37480
    IPv6 deaggregation factor: 2.25

    APNIC - Prefixes with a valid RPKI status: 47860
    APNIC - Prefixes with an invalid RPKI status: 570
    APNIC - ROA‑uncovered prefixes: 37549

  Number of ASes in APNIC: 9612
    Number of 32-bit ASes in APNIC: 7860
    Number of 16-bit ASes that are only origin in APNIC: 1416
    Number of 32-bit ASes that are only origin in APNIC: 7646
    Number of 16-bit ASes that are only transit in APNIC: 37
    Number of 32-bit ASes that are only transit in APNIC: 22
    Number of Transit ASes that also announce prefixes in APNIC: 542

ARIN Region Analysis Summary
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  ARIN IPv6 prefixes: 2001:400::/23 2001:1800::/23 2001:4800::/23 2600::/12 2610::/23 2620::/23 2630::/12

  Number of prefixes analyzed in ARIN: 40131
    Average number of prefixes according to the number of ASes in ARIN: 7.72
    Average Prefix Length in ARIN: 44.54
    Number of /48s in ARIN: 22705
    Longest AS PATH in ARIN: 27
    Prefix with most prepends in ARIN {'PREFIX': '2604:5500::/42', 'Count': 25, 'AS': '19165'}

    Prefixes after maximum aggregation (per Origin AS): 33754
    IPv6 deaggregation factor: 1.59

    ARIN - Prefixes with a valid RPKI status: 29515
    ARIN - Prefixes with an invalid RPKI status: 69
    ARIN - ROA‑uncovered prefixes: 10547

  Number of ASes in ARIN: 5199
    Number of 32-bit ASes in ARIN: 1486
    Number of 16-bit ASes that are only origin in ARIN: 3318
    Number of 32-bit ASes that are only origin in ARIN: 1441
    Number of 16-bit ASes that are only transit in ARIN: 26
    Number of 32-bit ASes that are only transit in ARIN: 5
    Number of Transit ASes that also announce prefixes in ARIN: 438

LACNIC Region Analysis Summary
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  LACNIC IPv6 prefixes: 2001:1200::/23 2800::/12

  Number of prefixes analyzed in LACNIC: 52378
    Average number of prefixes according to the number of ASes in LACNIC: 5.61
    Average Prefix Length in LACNIC: 40.97
    Number of /48s in LACNIC: 19215
    Longest AS PATH in LACNIC: 45
    Prefix with most prepends in LACNIC {'PREFIX': '2803:6850:1::/48', 'Count': 29, 'AS': '273113'}

    Prefixes after maximum aggregation (per Origin AS): 31039
    IPv6 deaggregation factor: 1.62

    LACNIC - Prefixes with a valid RPKI status: 31289
    LACNIC - Prefixes with an invalid RPKI status: 89
    LACNIC - ROA‑uncovered prefixes: 21000

  Number of ASes in LACNIC: 9329
    Number of 32-bit ASes in LACNIC: 7908
    Number of 16-bit ASes that are only origin in LACNIC: 1079
    Number of 32-bit ASes that are only origin in LACNIC: 7117
    Number of 16-bit ASes that are only transit in LACNIC: 8
    Number of 32-bit ASes that are only transit in LACNIC: 10
    Number of Transit ASes that also announce prefixes in LACNIC: 1122

AFRINIC Region Analysis Summary
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  AFRINIC IPv6 prefixes: 2001:4200::/23 2c00::/12

  Number of prefixes analyzed in AFRINIC: 4278
    Average number of prefixes according to the number of ASes in AFRINIC: 6.46
    Average Prefix Length in AFRINIC: 43.63
    Number of /48s in AFRINIC: 2382
    Longest AS PATH in AFRINIC: 17
    Prefix with most prepends in AFRINIC {'PREFIX': '2C0F:F2B0::/32', 'Count': 14, 'AS': '328049'}

    Prefixes after maximum aggregation (per Origin AS): 1703
    IPv6 deaggregation factor: 2.37

    AFRINIC - Prefixes with a valid RPKI status: 2922
    AFRINIC - Prefixes with an invalid RPKI status: 1
    AFRINIC - ROA‑uncovered prefixes: 1355

  Number of ASes in AFRINIC: 662
    Number of 32-bit ASes in AFRINIC: 382
    Number of 16-bit ASes that are only origin in AFRINIC: 230
    Number of 32-bit ASes that are only origin in AFRINIC: 366
    Number of 16-bit ASes that are only transit in AFRINIC: 1
    Number of 32-bit ASes that are only transit in AFRINIC: 0
    Number of Transit ASes that also announce prefixes in AFRINIC: 66

RIPE Region Analysis Summary
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  RIPE IPv6 prefixes: 2001:600::/23 2001:800::/22 2001:1400::/22 2001:1a00::/23 2001:1c00::/22 2001:2000::/19 2001:4000::/23 2001:4600::/23 2001:4a00::/23 2001:4c00::/23 2001:5000::/20 2003::/18 2a00::/12 2a10::/12

  Number of prefixes analyzed in RIPE: 61920
    Average number of prefixes according to the number of ASes in RIPE: 5.49
    Average Prefix Length in RIPE: 42.63
    Number of /48s in RIPE: 32403
    Longest AS PATH in RIPE: 26
    Prefix with most prepends in RIPE {'PREFIX': '2A0D:3344:37C0::/42', 'Count': 19, 'AS': '60849'}

    Prefixes after maximum aggregation (per Origin AS): 32562
    IPv6 deaggregation factor: 1.65

    RIPE - Prefixes with a valid RPKI status: 52084
    RIPE - Prefixes with an invalid RPKI status: 303
    RIPE - ROA‑uncovered prefixes: 9533

  Number of ASes in RIPE: 11282
    Number of 32-bit ASes in RIPE: 5484
    Number of 16-bit ASes that are only origin in RIPE: 4979
    Number of 32-bit ASes that are only origin in RIPE: 5272
    Number of 16-bit ASes that are only transit in RIPE: 47
    Number of 32-bit ASes that are only transit in RIPE: 21
    Number of Transit ASes that also announce prefixes in RIPE: 1030

End of report
Based on Phil Smith's IPv4 Weekly Report
Hosted by LACNIC