This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-st...@lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith .
Routing Table Report 04:00 +10GMT Sat 07 Nov, 2020
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
BGP routing table entries examined: 829471
Prefixes after maximum aggregation (per Origin AS): 316605
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 397281
Total ASes present in the Internet Routing Table: 69852
Prefixes per ASN: 11.87
Origin-only ASes present in the Internet Routing Table: 60030
Origin ASes announcing only one prefix: 24882
Transit ASes present in the Internet Routing Table:9822
Transit-only ASes present in the Internet Routing Table:293
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 32
Max AS path prepend of ASN ( 45582) 27
Prefixes from unregistered ASNs in the Routing Table: 927
Number of instances of unregistered ASNs: 928
Number of 32-bit ASNs allocated by the RIRs: 34064
Number of 32-bit ASNs visible in the Routing Table: 28189
Prefixes from 32-bit ASNs in the Routing Table: 128769
Number of bogon 32-bit ASNs visible in the Routing Table:14
Special use prefixes present in the Routing Table:1
Prefixes being announced from unallocated address space:500
Number of addresses announced to Internet: 2866260224
Equivalent to 170 /8s, 215 /16s and 169 /24s
Percentage of available address space announced: 77.4
Percentage of allocated address space announced: 77.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 279452
APNIC Region Analysis Summary
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Prefixes being announced by APNIC Region ASes: 217317
Total APNIC prefixes after maximum aggregation: 63684
APNIC Deaggregation factor:3.41
Prefixes being announced from the APNIC address blocks: 212932
Unique aggregates announced from the APNIC address blocks:87129
APNIC Region origin ASes present in the Internet Routing Table: 11003
APNIC Prefixes per ASN: 19.35
APNIC Region origin ASes announcing only one prefix: 3106
APNIC Region transit ASes present in the Internet Routing Table: 1607
Average APNIC Region AS path length visible:4.5
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6125
Number of APNIC addresses announced to Internet: 779274112
Equivalent to 46 /8s, 114 /16s and 199 /24s
APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-143673
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
Prefixes being announced by ARIN Region ASes:241717
Total ARIN prefixes after maximum aggregation: 111410
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 239568
Unique aggregates announced from the ARIN address blocks:114900
ARIN Region origin ASes present in the Internet Routing Table:18677
ARIN Prefixes per ASN:12.83
ARIN Reg
