[lacnog] Weekly Global IPv6 Routing Table Summary
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weeklyipv6report en gmail.com
Jue Nov 20 11:38:02 -03 2025
This is an automated weekly mailing describing the state of the Global
IPv6 Routing Table as seen from Potaroo.net (https://bgp.potaroo.net/v6/as2.0/bgptable.txt)
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Global Analysis Summary
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BGP routing table entries examined: 238451
Prefix with the most prepends: {'PREFIX': '2803:6850:1::/48', 'Count': 29, 'AS': '273113'}
Unidentified prefixes: 0
Number of AS_SET found in the Routing Table: 24
Longest Global AS PATH: 33
Prefixes identified as IANA: 7
Global Average Prefix Length: 42.9
Number of /48s globally: 106443
Total ASes present in the Internet Routing Table: 35612
Average number of ASes per prefix: 6.7
Number of 32-bit ASes globally: 22647
Number of 16-bit ASes globally: 12965
Number of ASes that are only origin: 33189
Number of 16-bit ASes that are only origin: 11479
Number of 32-bit ASes that are only origin: 21710
Number of ASes that are only transit: 137
Number of 16-bit ASes that are only transit: 89
Number of 32-bit ASes that are only transit: 48
Number of Transit ASes that also announce prefixes: 2423
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: 2
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: 86582
Average number of prefixes according to the number of ASes in APNIC: 9.14
Average Prefix Length in APNIC: 43.78
Number of /48s in APNIC: 35882
Longest PATH in APNIC: 33
Prefix with most prepends in APNIC {'PREFIX': '2001:df5:1e40::/48', 'Count': 25, 'AS': '139693'}
Number of ASes in APNIC: 9468
Number of 32-bit ASes in APNIC: 7730
Number of 16-bit ASes that are only origin in APNIC: 1457
Number of 32-bit ASes that are only origin in APNIC: 7555
Number of 16-bit ASes that are only transit in APNIC: 23
Number of 32-bit ASes that are only transit in APNIC: 20
Number of Transit ASes that also announce prefixes in APNIC: 448
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: 36963
Average number of prefixes according to the number of ASes in ARIN: 7.26
Average Prefix Length in ARIN: 44.42
Number of /48s in ARIN: 20188
Longest AS PATH in ARIN: 22
Prefix with most prepends in ARIN {'PREFIX': '2602:fd5d:9::/48', 'Count': 19, 'AS': '60849'}
Number of ASes in ARIN: 5092
Number of 32-bit ASes in ARIN: 1415
Number of 16-bit ASes that are only origin in ARIN: 3384
Number of 32-bit ASes that are only origin in ARIN: 1383
Number of 16-bit ASes that are only transit in ARIN: 12
Number of 32-bit ASes that are only transit in ARIN: 6
Number of Transit ASes that also announce prefixes in ARIN: 321
LACNIC Region Analysis Summary
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LACNIC IPv6 prefixes: 2001:1200::/23 2800::/12
Number of prefixes analyzed in LACNIC: 50089
Average number of prefixes according to the number of ASes in LACNIC: 5.46
Average Prefix Length in LACNIC: 40.86
Number of /48s in LACNIC: 17782
Longest AS PATH in LACNIC: 32
Prefix with most prepends in LACNIC {'PREFIX': '2803:6850:1::/48', 'Count': 29, 'AS': '273113'}
Number of ASes in LACNIC: 9167
Number of 32-bit ASes in LACNIC: 7755
Number of 16-bit ASes that are only origin in LACNIC: 1133
Number of 32-bit ASes that are only origin in LACNIC: 7171
Number of 16-bit ASes that are only transit in LACNIC: 11
Number of 32-bit ASes that are only transit in LACNIC: 8
Number of Transit ASes that also announce prefixes in LACNIC: 859
AFRINIC Region Analysis Summary
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AFRINIC IPv6 prefixes: 2001:4200::/23 2c00::/12
Number of prefixes analyzed in AFRINIC: 3410
Average number of prefixes according to the number of ASes in AFRINIC: 5.26
Average Prefix Length in AFRINIC: 42.51
Number of /48s in AFRINIC: 1504
Longest AS PATH in AFRINIC: 15
Prefix with most prepends in AFRINIC {'PREFIX': '2c0f:fc89::/32', 'Count': 11, 'AS': '36992'}
Number of ASes in AFRINIC: 648
Number of 32-bit ASes in AFRINIC: 372
Number of 16-bit ASes that are only origin in AFRINIC: 237
Number of 32-bit ASes that are only origin in AFRINIC: 365
Number of 16-bit ASes that are only transit in AFRINIC: 2
Number of 32-bit ASes that are only transit in AFRINIC: 1
Number of Transit ASes that also announce prefixes in AFRINIC: 46
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: 61400
Average number of prefixes according to the number of ASes in RIPE: 5.47
Average Prefix Length in RIPE: 42.44
Number of /48s in RIPE: 31083
Longest AS PATH in RIPE: 28
Prefix with most prepends in RIPE {'PREFIX': '2a13:9500:c8::/48', 'Count': 24, 'AS': '153060'}
Number of ASes in RIPE: 11235
Number of 32-bit ASes in RIPE: 5369
Number of 16-bit ASes that are only origin in RIPE: 5255
Number of 32-bit ASes that are only origin in RIPE: 5230
Number of 16-bit ASes that are only transit in RIPE: 41
Number of 32-bit ASes that are only transit in RIPE: 12
Number of Transit ASes that also announce prefixes in RIPE: 749
End of report
Based on Phil Smith's IPv4 Weekly Report
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