IPv4 R&E Routing Table Report 21:30 GMT Tue 18 Jun, 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: 2066 Prefixes after maximum aggregation (per Origin AS): 1392 Deaggregation factor: 1.48 Unique aggregates announced (without unneeded subnets): 1585 Number of IPv4 prefixes with a valid ROA: 283 Number of IPv4 prefixes with an invalid ROA: 3 Number of IPv4 prefixes with no ROA: 1780 Total ASes present in the Internet Routing Table: 298 Prefixes per ASN: 6.93 Origin-only ASes present in the Internet Routing Table: 279 Origin ASes announcing only one prefix: 135 Transit ASes present in the Internet Routing Table: 19 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: 9 Max AS path prepend of ASN ( 23793) 5 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: 44780 Number of 32-bit ASNs visible in the Routing Table: 97 Prefixes from 32-bit ASNs in the Routing Table: 204 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: 3 Number of addresses announced to Internet: 22639680 Equivalent to 1 /8s, 89 /16s and 116 /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: 99.6 Total number of prefixes smaller than registry allocations: 16 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1743 Total APNIC prefixes after maximum aggregation: 1133 APNIC Deaggregation factor: 1.54 Prefixes being announced from the APNIC address blocks: 1740 Unique aggregates announced from the APNIC address blocks: 1290 APNIC Region origin ASes present in the Internet Routing Table: 266 APNIC Prefixes per ASN: 6.54 APNIC Region origin ASes announcing only one prefix: 128 APNIC Region transit ASes present in the Internet Routing Table: 14 Average APNIC Region AS path length visible: 3.3 Max APNIC Region AS path length visible: 9 Number of APNIC region 32-bit ASNs visible in the Routing Table: 95 Number of APNIC addresses announced to Internet: 18640704 Equivalent to 1 /8s, 28 /16s and 111 /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: 322 Total ARIN prefixes after maximum aggregation: 258 ARIN Deaggregation factor: 1.25 Prefixes being announced from the ARIN address blocks: 322 Unique aggregates announced from the ARIN address blocks: 292 ARIN Region origin ASes present in the Internet Routing Table: 28 ARIN Prefixes per ASN: 11.50 ARIN Region origin ASes announcing only one prefix: 6 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: 3990528 Equivalent to 0 /8s, 60 /16s and 228 /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 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, 262144-274844 + 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 600 2162 464 SINET-AS Research Organization of Infor 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 115 UNASSIGNED 134096 30 3 18 UNASSIGNED 23793 29 49 10 AIST National Institute of Advanced Ind 24436 23 27 20 UNASSIGNED 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 10148 18 20 18 UNASSIGNED 38142 17 1 1 UNASSIGNED 2506 16 52 6 SUPERCSI NTT WEST CHUGOKU CORPORATION, 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 668 204 648 173 UNASSIGNED 37 17 17 5 UNASSIGNED 518 13 2 7 UNASSIGNED 6360 13 62 9 UNIVHAWAII, US 13 6 17 6 UNASSIGNED 89 6 33 6 UNASSIGNED 121 6 2 3 UNASSIGNED 22 5 34 5 UNASSIGNED 84 5 16 5 UNASSIGNED 252 5 17 5 UNASSIGNED 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 600 2162 464 SINET-AS Research Organization of Infor 668 204 648 173 UNASSIGNED 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 115 UNASSIGNED 134096 30 3 18 UNASSIGNED 23793 29 49 10 AIST National Institute of Advanced Ind 24436 23 27 20 UNASSIGNED 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 10148 18 20 18 UNASSIGNED 37 17 17 5 UNASSIGNED 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 182 180 KAGAWAU-AS Kagawa University, JP 7575 170 55 UNASSIGNED 668 204 31 UNASSIGNED 23793 29 19 AIST National Institute of Advanced Industrial 38142 17 16 UNASSIGNED 134096 30 12 UNASSIGNED 37 17 12 UNASSIGNED 2506 16 10 SUPERCSI NTT WEST CHUGOKU CORPORATION, JP 55354 12 10 UNASSIGNED 37918 14 9 ECL-INET Nippon Telegraph and Telephone Corpora Complete listing at https://bgp.nsrc.org/REN/GOREX/data-CIDRnet Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 202.46.0.0/20 Origin: 147171 UNASSIGNED 202.46.0.0/20 Transit: 64302 UNASSIGNED 202.46.240.0/20 Origin: 147171 UNASSIGNED 202.46.240.0/20 Transit: 64302 UNASSIGNED 202.46.245.0/24 Origin: 147171 UNASSIGNED 202.46.245.0/24 Transit: 64302 UNASSIGNED 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 /16:299 /17:57 /18:46 /19:54 /20:86 /21:105 /22:157 /23:190 /24:1042 /25:2 /26:4 /27:2 /28:2 /29:12 /30:3 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 2907 7 600 SINET-AS Research Organization of Information a 668 3 204 UNASSIGNED 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 49:4 103:129 128:3 130:8 131:6 132:1 133:157 134:7 138:8 140:2 143:4 147:4 150:4 152:3 155:3 156:7 157:3 160:26 161:4 163:16 167:3 175:7 192:127 198:20 199:32 200:1 202:228 203:162 204:7 205:7 206:3 207:3 209:3 210:20 214:8 219:4 End of report