IPv4 R&E Routing Table Report 21:30 GMT Mon 16 Oct, 2023 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: 2011 Prefixes after maximum aggregation (per Origin AS): 1358 Deaggregation factor: 1.48 Unique aggregates announced (without unneeded subnets): 1566 Number of IPv4 prefixes with a valid ROA: 208 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 1802 Total ASes present in the Internet Routing Table: 263 Prefixes per ASN: 7.65 Origin-only ASes present in the Internet Routing Table: 243 Origin ASes announcing only one prefix: 115 Transit ASes present in the Internet Routing Table: 20 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: 3.2 Max AS path length visible: 11 Max AS path prepend of ASN ( 38319) 9 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: 42851 Number of 32-bit ASNs visible in the Routing Table: 71 Prefixes from 32-bit ASNs in the Routing Table: 154 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: 1 Number of addresses announced to Internet: 22830656 Equivalent to 1 /8s, 92 /16s and 94 /24s Percentage of available address space announced: 0.6 Percentage of allocated address space announced: 0.6 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: 16 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1686 Total APNIC prefixes after maximum aggregation: 1098 APNIC Deaggregation factor: 1.54 Prefixes being announced from the APNIC address blocks: 1685 Unique aggregates announced from the APNIC address blocks: 1273 APNIC Region origin ASes present in the Internet Routing Table: 230 APNIC Prefixes per ASN: 7.33 APNIC Region origin ASes announcing only one prefix: 107 APNIC Region transit ASes present in the Internet Routing Table: 14 Average APNIC Region AS path length visible: 3.2 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 69 Number of APNIC addresses announced to Internet: 18823744 Equivalent to 1 /8s, 31 /16s and 58 /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 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: 324 Total ARIN prefixes after maximum aggregation: 259 ARIN Deaggregation factor: 1.25 Prefixes being announced from the ARIN address blocks: 324 Unique aggregates announced from the ARIN address blocks: 291 ARIN Region origin ASes present in the Internet Routing Table: 29 ARIN Prefixes per ASN: 11.17 ARIN Region origin ASes announcing only one prefix: 7 ARIN Region transit ASes present in the Internet Routing Table: 4 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 5 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2 Number of ARIN addresses announced to Internet: 4006400 Equivalent to 0 /8s, 61 /16s and 34 /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, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 0 Total RIPE prefixes after maximum aggregation: 0 RIPE Deaggregation factor: -nan 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: 0 RIPE Prefixes per ASN: -nan RIPE Region origin ASes announcing only one prefix: 0 RIPE Region transit ASes present in the Internet Routing Table: 0 Average RIPE Region AS path length visible: -nan Max RIPE Region AS path length visible: 0 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 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, 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: 1 Unique aggregates announced from the LACNIC address blocks: 1 LACNIC Region origin ASes present in the Internet Routing Table: 1 LACNIC Prefixes per ASN: 1.00 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: 256 Equivalent to 0 /8s, 0 /16s and 1 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, 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 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 601 2161 464 SINET-AS Research Organization of Infor 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 175 329 119 AARNET-AS-AP Australian Academic and Re 23767 30 3 10 A-STAR-AS-AP A-STAR, SG 23793 29 49 10 AIST National Institute of Advanced Ind 134096 29 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 24436 23 27 19 UQ-AS-AP University of Queensland, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 10148 19 20 18 UNIMELB-AS-AP The University of Melbour 38022 18 3 12 REANNZ-NZ-AP REANNZ National Research a 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 668 203 652 172 DNIC-AS-00668, US 37 19 17 5 DNIC-AS-00037, US 6360 14 62 9 UNIVHAWAII, US 518 13 2 7 DNIC-AS-00518, US 13 6 17 6 DNIC-AS-00013, US 89 6 33 6 DNIC-AS-00089, US 121 6 2 3 DNIC-AS-00121, US 22 5 34 5 DNIC-AS-00022, US 84 5 16 5 DNIC-AS-00084, US 252 5 17 5 DNIC-AS-00252, 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 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 - N 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 601 2161 464 SINET-AS Research Organization of Infor 668 203 652 172 DNIC-AS-00668, US 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 175 329 119 AARNET-AS-AP Australian Academic and Re 23767 30 3 10 A-STAR-AS-AP A-STAR, SG 23793 29 49 10 AIST National Institute of Advanced Ind 134096 29 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 24436 23 27 19 UQ-AS-AP University of Queensland, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 37 19 17 5 DNIC-AS-00037, US 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 177 175 KAGAWAU-AS Kagawa University, JP 7575 175 56 AARNET-AS-AP Australian Academic and Research N 668 203 31 DNIC-AS-00668, US 23767 30 20 A-STAR-AS-AP A-STAR, SG 23793 29 19 AIST National Institute of Advanced Industrial 37 19 14 DNIC-AS-00037, US 134096 29 11 EHEALTHNSW-AS-AP eHealth NSW, AU 2506 16 10 SUPERCSI NTT WEST CHUGOKU CORPORATION, JP 37918 15 10 ECL-INET Nippon Telegraph and Telephone Corpora 55354 12 10 ACEINT-AS-AP Ace Internet Services Pty Ltd, AU Complete listing at https://bgp.nsrc.org/REN/GOREX/data-CIDRnet Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/GOREX/data-add-IANA 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 /15:2 /16:302 /17:55 /18:46 /19:54 /20:83 /21:106 /22:160 /23:181 /24:995 /25:2 /26:4 /27:1 /28:2 /29:12 /30:3 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 2907 7 601 SINET-AS Research Organization of Information a 668 3 203 DNIC-AS-00668, US 36599 2 3 SOFTETHER-AMERICA, US 45688 2 7 UT-NSRG The University of Tokyo Interfaculty In 55909 2 3 KOCHI-CT National Institute of Technology, Koch Complete listing at https://bgp.nsrc.org/REN/GOREX/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 6:4 24:2 44:1 45:1 49:4 103:82 123:8 128:3 130:6 131:6 132:2 133:152 134:6 138:8 140:3 143:4 147:4 150:5 152:3 155:4 156:7 157:2 160:26 161:4 163:24 192:142 198:21 199:33 200:1 202:225 203:166 204:6 205:7 206:3 207:3 209:3 210:3 214:7 219:4 End of report