This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, 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 https://thyme.apnic.net.
If you have any comments please contact Philip Smith .
IPv4 Routing Table Report 04:00 +10GMT Sat 11 Nov, 2023
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
BGP routing table entries examined: 935006
Prefixes after maximum aggregation (per Origin AS): 355778
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 454622
Total ASes present in the Internet Routing Table: 75042
Prefixes per ASN: 12.46
Origin-only ASes present in the Internet Routing Table: 64403
Origin ASes announcing only one prefix: 26462
Transit ASes present in the Internet Routing Table: 10639
Transit-only ASes present in the Internet Routing Table:480
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1071
Number of instances of unregistered ASNs: 1077
Number of 32-bit ASNs allocated by the RIRs: 43033
Number of 32-bit ASNs visible in the Routing Table: 35370
Prefixes from 32-bit ASNs in the Routing Table: 177646
Number of bogon 32-bit ASNs visible in the Routing Table:32
Special use prefixes present in the Routing Table:1
Prefixes being announced from unallocated address space:511
Number of addresses announced to Internet: 3051023104
Equivalent to 181 /8s, 218 /16s and 235 /24s
Percentage of available address space announced: 82.4
Percentage of allocated address space announced: 82.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 310908
APNIC Region Analysis Summary
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Prefixes being announced by APNIC Region ASes: 248524
Total APNIC prefixes after maximum aggregation: 71578
APNIC Deaggregation factor:3.47
Prefixes being announced from the APNIC address blocks: 241689
Unique aggregates announced from the APNIC address blocks:98997
APNIC Region origin ASes present in the Internet Routing Table: 13744
APNIC Prefixes per ASN: 17.59
APNIC Region origin ASes announcing only one prefix: 4126
APNIC Region transit ASes present in the Internet Routing Table: 1842
Average APNIC Region AS path length visible:4.4
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9077
Number of APNIC addresses announced to Internet: 772185472
Equivalent to 46 /8s, 6 /16s and 157 /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, 131072-153913
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:273613
Total ARIN prefixes after maximum aggregation: 124339
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278141
Unique aggregates announced from the ARIN address blocks:132362
ARIN Region origin ASes present in the Internet Routing Table:19066
ARIN Prefixes per ASN:
