IPv4 R&E Routing Table Report 21:30 GMT Wed 06 Nov, 2024 IPv4 BGP Table (IX) as seen at GOREX. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GOREX/ Analysis Summary ---------------- BGP routing table entries examined: 1857 Prefixes after maximum aggregation (per Origin AS): 1187 Deaggregation factor: 1.56 Unique aggregates announced (without unneeded subnets): 1383 Number of IPv4 prefixes with a valid ROA: 374 Number of IPv4 prefixes with an invalid ROA: 10 Number of IPv4 prefixes with no ROA: 1473 Total ASes present in the Internet Routing Table: 289 Prefixes per ASN: 6.43 Origin-only ASes present in the Internet Routing Table: 268 Origin ASes announcing only one prefix: 127 Transit ASes present in the Internet Routing Table: 21 Transit-only ASes present in the Internet Routing Table: 3 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.3 Max AS path length visible: 23 Max AS path prepend of ASN (138136) 20 Prefixes from unregistered ASNs in the Routing Table: 0 Number of instances of unregistered ASNs: 0 Number of 32-bit ASNs allocated by the RIRs: 45777 Number of 32-bit ASNs visible in the Routing Table: 93 Prefixes from 32-bit ASNs in the Routing Table: 200 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 19160129 Equivalent to 1 /8s, 36 /16s and 92 /24s Percentage of available address space announced: 0.5 Percentage of allocated address space announced: 0.4 Percentage of available address space allocated: 128.8 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 558 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1829 Total APNIC prefixes after maximum aggregation: 1165 APNIC Deaggregation factor: 1.57 Prefixes being announced from the APNIC address blocks: 386 Unique aggregates announced from the APNIC address blocks: 321 APNIC Region origin ASes present in the Internet Routing Table: 276 APNIC Prefixes per ASN: 1.40 APNIC Region origin ASes announcing only one prefix: 123 APNIC Region transit ASes present in the Internet Routing Table: 15 Average APNIC Region AS path length visible: 3.3 Max APNIC Region AS path length visible: 23 Number of APNIC region 32-bit ASNs visible in the Routing Table: 91 Number of APNIC addresses announced to Internet: 6404672 Equivalent to 0 /8s, 97 /16s and 186 /24s APNIC AS Blocks 4608-4864, 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 43/8, 45/8, 146/8, 150/8, 160/8, 163/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 26 Total ARIN prefixes after maximum aggregation: 20 ARIN Deaggregation factor: 1.30 Prefixes being announced from the ARIN address blocks: 14 Unique aggregates announced from the ARIN address blocks: 13 ARIN Region origin ASes present in the Internet Routing Table: 8 ARIN Prefixes per ASN: 1.75 ARIN Region origin ASes announcing only one prefix: 2 ARIN Region transit ASes present in the Internet Routing Table: 4 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 6 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2 Number of ARIN addresses announced to Internet: 79104 Equivalent to 0 /8s, 1 /16s and 53 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 66/8, 131/8, 137/8, 139/8, 144/8, 149/8, 162/8, 164/8, 192/8, 198/8, 199/8, 204/8, 205/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 1 Total RIPE prefixes after maximum aggregation: 1 RIPE Deaggregation factor: 1.00 Prefixes being announced from the RIPE address blocks: 0 Unique aggregates announced from the RIPE address blocks: 0 RIPE Region origin ASes present in the Internet Routing Table: 1 RIPE Prefixes per ASN: 0.00 RIPE Region origin ASes announcing only one prefix: 1 RIPE Region transit ASes present in the Internet Routing Table: 0 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 4 Number of RIPE region 32-bit ASNs visible in the Routing Table: 0 Number of RIPE addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 152/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 1 Total LACNIC prefixes after maximum aggregation: 1 LACNIC Deaggregation factor: 1.00 Prefixes being announced from the LACNIC address blocks: 0 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 1 LACNIC Prefixes per ASN: 0.00 LACNIC Region origin ASes announcing only one prefix: 1 LACNIC Region transit ASes present in the Internet Routing Table: 0 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 6 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 72/8, 128/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 0 Total AfriNIC prefixes after maximum aggregation: 0 AfriNIC Deaggregation factor: -nan Prefixes being announced from the AfriNIC address blocks: 0 Unique aggregates announced from the AfriNIC address blocks: 0 AfriNIC Region origin ASes present in the Internet Routing Table: 0 AfriNIC Prefixes per ASN: -nan AfriNIC Region origin ASes announcing only one prefix: 0 AfriNIC Region transit ASes present in the Internet Routing Table: 0 Average AfriNIC Region AS path length visible: -nan Max AfriNIC Region AS path length visible: 0 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0 Number of AfriNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 161/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 598 2169 463 SINET-AS Research Organization of Informa 58647 179 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 115 AARNET-AS-AP Australian Academic and Rese 134096 30 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 23767 29 2 9 A-STAR-AS-AP A-STAR, SG 23793 29 49 10 AIST National Institute of Advanced Indus 24436 23 27 20 UQ-AS-AP University of Queensland, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Industr 10148 18 20 18 UNIMELB-AS-AP The University of Melbourne 38142 17 1 1 UNAIR-AS-ID Universitas Airlangga, ID Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6360 10 62 8 UNIVHAWAII, US 395400 4 16 2 UNIVERSITY-GUAM, GU 26100 3 1 3 NOAA-PACIFIC-REGION-CENTER, US 36599 3 0 2 SOFTETHER-AMERICA, US 20144 2 0 1 IMRS, US 396628 2 0 2 VRSN-AC50-340, US 16538 1 0 1 PDC, US 35889 1 0 1 GOREX, US Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 25152 1 0 1 K-ROOT-SERVER Reseaux IP Europeens Networ Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10906 1 0 1 Nucleo de Inf. e Coord. do Ponto BR - NIC Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 598 2169 463 SINET-AS Research Organization of Informa 58647 179 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 115 AARNET-AS-AP Australian Academic and Rese 134096 30 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 23767 29 2 9 A-STAR-AS-AP A-STAR, SG 23793 29 49 10 AIST National Institute of Advanced Indus 24436 23 27 20 UQ-AS-AP University of Queensland, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Industr 10148 18 20 18 UNIMELB-AS-AP The University of Melbourne 38142 17 1 1 UNAIR-AS-ID Universitas Airlangga, ID Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 58647 179 177 KAGAWAU-AS Kagawa University, JP 7575 170 55 AARNET-AS-AP Australian Academic and Research N 23767 29 20 A-STAR-AS-AP A-STAR, SG 23793 29 19 AIST National Institute of Advanced Industrial 38142 17 16 UNAIR-AS-ID Universitas Airlangga, ID 134096 30 12 EHEALTHNSW-AS-AP eHealth NSW, AU 2506 16 10 SUPERCSI NTT WEST CHUGOKU CORPORATION, JP 55354 12 10 ACEINT-AS-AP Ace Internet Services Pty Ltd, AU 37918 14 9 ECL-INET Nippon Telegraph and Telephone Corpora 46049 9 8 UNDIP-AS-ID Universitas Diponegoro, ID Complete listing at https://bgp.nsrc.org/REN/GOREX/data-CIDRnet Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:0 /10:0 /11:0 /12:0 /13:0 /14:0 /15:1 /16:254 /17:50 /18:46 /19:49 /20:67 /21:69 /22:147 /23:164 /24:980 /25:3 /26:4 /27:1 /28:2 /29:13 /30:3 /31:0 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 58647 148 179 KAGAWAU-AS Kagawa University, JP 2907 48 598 SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP 7575 43 170 AARNET-AS-AP Australian Academic and Research Network AARNet, AU 23767 12 29 A-STAR-AS-AP A-STAR, SG 23905 10 11 VUW-AS-AP Victoria University of Wellington, NZ 46049 9 9 UNDIP-AS-ID Universitas Diponegoro, ID 134096 9 30 EHEALTHNSW-AS-AP eHealth NSW, AU 18148 8 8 FUKUOKA-U Fukuoka University, JP 46019 8 8 UNIBRAW-AS-ID Universitas Brawijaya, ID 9433 7 8 MASSEY-AS Massey University, NZ Complete listing at https://bgp.nsrc.org/REN/GOREX/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 24:2 44:1 45:1 49:4 103:137 111:4 123:8 130:9 131:5 132:2 133:153 134:3 138:8 143:4 147:1 150:4 152:3 155:4 156:7 157:3 160:26 161:4 163:12 167:1 175:11 180:1 182:8 192:107 193:1 199:1 200:1 202:247 203:170 205:3 210:20 219:4 End of report