[lacnog] Fwd: Weekly Global IPv6 Routing Table Summary

Jue Ago 21 10:44:43 -03 2025

Muy buenos días lista,

   Paso por aquí para compartirles el correo que está más abajo, 
titulado: **"Weekly Global IPv6 Routing Table Summary"**.

   Como seguramente todos han notado, los días viernes llega a la lista 
de LACNOG (y a muchas otras listas) un email con el mismo nombre, pero 
sobre IPv4 (¡gracias, Phil!).

   Para hacer el cuento corto, desde finales del año pasado, unos 
pasantes de la Universidad Central de Venezuela se pusieron a trabajar 
en esta idea y, con el apoyo de VENOG y LACNIC, hoy podemos decir que el 
proyecto es un éxito. El correo resume semanalmente muchas estadísticas 
de IPv6 en la tabla BGP y, adicionalmente, incluye un pequeño detalle 
por RIR.

   Y para ir cerrando, aquellos NOGs que estén interesados en recibir 
este informe, no duden en avisarnos; con mucho gusto serán agregados. 
Actualmente está automatizado para los días jueves pero con mucho gusto 
se ajusta a la necesidad del solicitante.

   Reciban un fuerte abrazo,

Alejandro,

P.D. Este trabajo no termina aquí, hay mucho más que puede/debe ser añadido.

-------- Forwarded Message --------
Subject: 	Weekly Global IPv6 Routing Table Summary
Date: 	Thu, 21 Aug 2025 05:49:16 -0700 (PDT)
From: 	weeklyipv6report en gmail.com
To: 	alejandro en lacnic.net

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)

The posting is sent to VENOG.
If you wish to be added please send an email to: info.venog en gmail.com

Global Analysis Summary
--------------------------------------------------------------------------------------

BGP routing table entries examined: 233133
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: 22
Longest Global AS PATH: 44
Prefixes identified as IANA: 5
Global Average Prefix Length: 42.91
Number of /48s globally: 105191

Total ASes present in the Internet Routing Table: 35087
Average number of ASes per prefix: 6.64

Number of 32-bit ASes globally: 22193
Number of 16-bit ASes globally: 12894

Number of ASes that are only origin: 32546
Number of 16-bit ASes that are only origin: 11317
Number of 32-bit ASes that are only origin: 21229

Number of ASes that are only transit: 144
Number of 16-bit ASes that are only transit: 89
Number of 32-bit ASes that are only transit: 55

Number of Transit ASes that also announce prefixes: 2541

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: 3

APNIC Region Analysis Summary
--------------------------------------------------------------------------------------

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: 84746
Average number of prefixes according to the number of ASes in APNIC: 9.03
Average Prefix Length in APNIC: 43.78
Number of /48s in APNIC: 35333
Longest PATH in APNIC: 24
Prefix with most prepends in APNIC {'PREFIX': '2401:aea0::/32', 'Count': 
19, 'AS': '135823'}

Number of ASes in APNIC: 9388
Number of 32-bit ASes in APNIC: 7627
Number of 16-bit ASes that are only origin in APNIC: 1474
Number of 32-bit ASes that are only origin in APNIC: 7467
Number of 16-bit ASes that are only transit in APNIC: 23
Number of 32-bit ASes that are only transit in APNIC: 24
Number of Transit ASes that also announce prefixes in APNIC: 441

ARIN Region Analysis Summary
--------------------------------------------------------------------------------------

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: 36950
Average number of prefixes according to the number of ASes in ARIN: 7.47
Average Prefix Length in ARIN: 44.6
Number of /48s in ARIN: 21164
Longest AS PATH in ARIN: 27
Prefix with most prepends in ARIN {'PREFIX': '2604:5500::/42', 'Count': 
25, 'AS': '19165'}

Number of ASes in ARIN: 4947
Number of 32-bit ASes in ARIN: 1358
Number of 16-bit ASes that are only origin in ARIN: 3279
Number of 32-bit ASes that are only origin in ARIN: 1324
Number of 16-bit ASes that are only transit in ARIN: 13
Number of 32-bit ASes that are only transit in ARIN: 5
Number of Transit ASes that also announce prefixes in ARIN: 343

LACNIC Region Analysis Summary
--------------------------------------------------------------------------------------

LACNIC IPv6 prefixes: 2001:1200::/23 2800::/12

Number of prefixes analyzed in LACNIC: 48846
Average number of prefixes according to the number of ASes in LACNIC: 5.42
Average Prefix Length in LACNIC: 40.88
Number of /48s in LACNIC: 17731
Longest AS PATH in LACNIC: 44
Prefix with most prepends in LACNIC {'PREFIX': '2803:6850:1::/48', 
'Count': 29, 'AS': '273113'}

Number of ASes in LACNIC: 9012
Number of 32-bit ASes in LACNIC: 7616
Number of 16-bit ASes that are only origin in LACNIC: 1091
Number of 32-bit ASes that are only origin in LACNIC: 6985
Number of 16-bit ASes that are only transit in LACNIC: 11
Number of 32-bit ASes that are only transit in LACNIC: 12
Number of Transit ASes that also announce prefixes in LACNIC: 929

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

Number of prefixes analyzed in AFRINIC: 3103
Average number of prefixes according to the number of ASes in AFRINIC: 4.83
Average Prefix Length in AFRINIC: 42.33
Number of /48s in AFRINIC: 1393
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: 643
Number of 32-bit ASes in AFRINIC: 362
Number of 16-bit ASes that are only origin in AFRINIC: 241
Number of 32-bit ASes that are only origin in AFRINIC: 358
Number of 16-bit ASes that are only transit in AFRINIC: 1
Number of 32-bit ASes that are only transit in AFRINIC: 1
Number of Transit ASes that also announce prefixes in AFRINIC: 44

RIPE Region Analysis Summary
---------------------------------------------------------------------------------

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: 59483
Average number of prefixes according to the number of ASes in RIPE: 5.36
Average Prefix Length in RIPE: 42.33
Number of /48s in RIPE: 29568
Longest AS PATH in RIPE: 29
Prefix with most prepends in RIPE {'PREFIX': '2a13:9500:c8::/48', 
'Count': 24, 'AS': '153060'}

Number of ASes in RIPE: 11094
Number of 32-bit ASes in RIPE: 5225
Number of 16-bit ASes that are only origin in RIPE: 5219
Number of 32-bit ASes that are only origin in RIPE: 5090
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: 784

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

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