Global R&E Routing Table Report 18:45 GMT Sun 25 Jul, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 16217 Prefixes after maximum aggregation (per Origin AS): 8385 Deaggregation factor: 1.93 Unique aggregates announced (without unneeded subnets): 9804 Total ASes present in the Internet Routing Table: 2252 Prefixes per ASN: 7.20 Origin-only ASes present in the Internet Routing Table: 1934 Origin ASes announcing only one prefix: 854 Transit ASes present in the Internet Routing Table: 318 Transit-only ASes present in the Internet Routing Table: 62 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 27 Number of instances of unregistered ASNs: 27 Number of 32-bit ASNs allocated by the RIRs: 36704 Number of 32-bit ASNs visible in the Routing Table: 476 Prefixes from 32-bit ASNs in the Routing Table: 1471 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 4 Number of addresses announced to Internet: 162954752 Equivalent to 9 /8s, 182 /16s and 126 /24s Percentage of available address space announced: 4.4 Percentage of allocated address space announced: 4.4 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: 1562 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4683 Total APNIC prefixes after maximum aggregation: 2342 APNIC Deaggregation factor: 2.00 Prefixes being announced from the APNIC address blocks: 4685 Unique aggregates announced from the APNIC address blocks: 2692 APNIC Region origin ASes present in the Internet Routing Table: 568 APNIC Prefixes per ASN: 8.25 APNIC Region origin ASes announcing only one prefix: 240 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46273536 Equivalent to 2 /8s, 194 /16s and 20 /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, 131072-147769 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: 8230 Total ARIN prefixes after maximum aggregation: 4659 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 8246 Unique aggregates announced from the ARIN address blocks: 5384 ARIN Region origin ASes present in the Internet Routing Table: 1210 ARIN Prefixes per ASN: 6.81 ARIN Region origin ASes announcing only one prefix: 442 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 153 Number of ARIN addresses announced to Internet: 96197120 Equivalent to 5 /8s, 187 /16s and 218 /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: 899 Total RIPE prefixes after maximum aggregation: 619 RIPE Deaggregation factor: 1.45 Prefixes being announced from the RIPE address blocks: 902 Unique aggregates announced from the RIPE address blocks: 635 RIPE Region origin ASes present in the Internet Routing Table: 205 RIPE Prefixes per ASN: 4.40 RIPE Region origin ASes announcing only one prefix: 97 RIPE Region transit ASes present in the Internet Routing Table: 34 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 29 Number of RIPE addresses announced to Internet: 13769984 Equivalent to 0 /8s, 210 /16s and 29 /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 196608-213403 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: 1536 Total LACNIC prefixes after maximum aggregation: 583 LACNIC Deaggregation factor: 2.63 Prefixes being announced from the LACNIC address blocks: 1538 Unique aggregates announced from the LACNIC address blocks: 814 LACNIC Region origin ASes present in the Internet Routing Table: 175 LACNIC Prefixes per ASN: 8.79 LACNIC Region origin ASes announcing only one prefix: 68 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 74 Number of LACNIC addresses announced to Internet: 4215552 Equivalent to 0 /8s, 64 /16s and 83 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 842 Total AfriNIC prefixes after maximum aggregation: 161 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 842 Unique aggregates announced from the AfriNIC address blocks: 275 AfriNIC Region origin ASes present in the Internet Routing Table: 25 AfriNIC Prefixes per ASN: 33.68 AfriNIC Region origin ASes announcing only one prefix: 7 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 3.0 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8 Number of AfriNIC addresses announced to Internet: 2497536 Equivalent to 0 /8s, 38 /16s and 28 /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 607 2155 455 UNALLOCATED 7497 436 214 25 UNALLOCATED 1237 189 75 137 UNALLOCATED 7575 179 330 125 UNALLOCATED 58647 164 18 2 UNALLOCATED 55824 129 19 23 UNALLOCATED 4538 124 4192 72 UNALLOCATED 4621 81 37 10 UNALLOCATED 4762 65 4 1 UNALLOCATED 23570 59 5 11 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 246 51 7 UNALLOCATED 376 234 180 158 UNALLOCATED 668 209 702 180 UNALLOCATED 5786 201 16 1 UNALLOCATED 2152 157 507 90 UNALLOCATED 18558 137 18 4 UNALLOCATED 270 117 297 87 UNALLOCATED 23024 113 7 20 UNALLOCATED 2920 109 34 6 UNALLOCATED 21976 86 51 18 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8895 141 24 4 UNALLOCATED 1103 98 1520 85 UNALLOCATED 1653 52 151 49 UNALLOCATED 1741 43 183 22 UNALLOCATED 288 26 5 26 UNALLOCATED 513 20 87 19 UNALLOCATED 3267 20 67 17 UNALLOCATED 8674 16 2 11 UNALLOCATED 224 13 256 13 UNALLOCATED 29384 13 3 9 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 178 207 41 UNALLOCATED 28391 152 10 66 UNALLOCATED 11340 93 24 53 UNALLOCATED 27884 93 6 2 UNALLOCATED 1251 65 37 20 UNALLOCATED 2715 60 102 40 UNALLOCATED 4270 44 16 1 UNALLOCATED 19611 44 17 2 UNALLOCATED 61468 41 3 15 UNALLOCATED 28614 38 2 2 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 329 319 74 UNALLOCATED 327687 135 28 3 UNALLOCATED 36914 95 82 3 UNALLOCATED 2561 75 5 33 UNALLOCATED 8094 55 48 4 UNALLOCATED 327700 38 16 1 UNALLOCATED 37215 30 8 1 UNALLOCATED 6879 24 2 9 UNALLOCATED 37182 11 8 1 UNALLOCATED 37501 11 49 6 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2155 455 UNALLOCATED 7497 436 214 25 UNALLOCATED 2018 329 319 74 UNALLOCATED 7896 246 51 7 UNALLOCATED 376 234 180 158 UNALLOCATED 668 209 702 180 UNALLOCATED 5786 201 16 1 UNALLOCATED 1237 189 75 137 UNALLOCATED 7575 179 330 125 UNALLOCATED 1916 178 207 41 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 436 411 UNALLOCATED 2018 329 255 UNALLOCATED 7896 246 239 UNALLOCATED 5786 201 200 UNALLOCATED 58647 164 162 UNALLOCATED 1916 178 137 UNALLOCATED 8895 141 137 UNALLOCATED 18558 137 133 UNALLOCATED 327687 135 132 UNALLOCATED 55824 129 106 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 36843 UNALLOCATED 64.56.80.0/23 11096 UNALLOCATED 19658 UNALLOCATED 65.205.131.0/24 11096 UNALLOCATED 36843 UNALLOCATED 108.59.20.0/24 11096 UNALLOCATED 36843 UNALLOCATED 108.59.23.0/24 11096 UNALLOCATED 36843 UNALLOCATED 131.91.183.0/24 11096 UNALLOCATED 36843 UNALLOCATED 131.91.252.0/22 11096 UNALLOCATED 65248 PRIVATE 134.171.169.0/24 11340 UNALLOCATED 14822 UNALLOCATED 140.163.0.0/16 10466 UNALLOCATED 14822 UNALLOCATED 140.163.0.0/17 10466 UNALLOCATED 14822 UNALLOCATED 140.163.6.0/24 10466 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNALLOCATED Transit: 1103 UNALLOCATED 192.88.99.0/24 Origin: 1103 UNALLOCATED Transit: 11537 UNALLOCATED 192.107.242.0/24 Origin: 394784 UNALLOCATED Transit: 40831 UNALLOCATED 205.166.145.0/24 Origin: 394784 UNALLOCATED Transit: 40831 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/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 /9:1 /10:2 /11:1 /12:9 /13:16 /14:31 /15:90 /16:1512 /17:339 /18:377 /19:501 /20:775 /21:730 /22:1156 /23:1293 /24:9384 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8895 136 141 UNALLOCATED 27884 90 93 UNALLOCATED 36914 82 95 UNALLOCATED 23024 53 113 UNALLOCATED 28614 32 38 UNALLOCATED 327700 32 38 UNALLOCATED 25977 31 45 UNALLOCATED 263282 30 37 UNALLOCATED 18632 29 55 UNALLOCATED 27609 29 45 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 6:4 8:2 12:1 14:84 18:41 23:9 24:6 35:2 38:9 40:1 41:138 42:26 44:3 45:55 46:1 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:2 63:38 64:50 65:5 66:52 67:45 68:9 69:17 71:1 72:11 74:19 76:32 77:4 80:3 81:1 82:2 84:1 85:12 86:9 87:1 89:2 91:15 92:1 93:1 95:1 96:5 97:1 98:2 101:2 102:6 103:294 104:72 106:1 107:16 108:12 109:6 110:3 111:20 112:4 114:23 115:1 116:4 117:61 118:35 119:19 121:29 122:8 123:8 124:42 125:13 128:78 129:164 130:95 131:89 132:60 133:137 134:90 136:192 137:146 138:10 139:5 140:48 141:3 142:44 143:37 144:54 146:125 147:67 148:154 149:13 150:38 151:10 152:76 153:1 154:24 155:49 156:63 157:25 158:44 159:116 160:25 161:34 162:26 163:64 164:40 165:26 166:1 167:16 168:130 169:10 170:67 171:1 172:2 173:7 175:32 176:8 177:8 179:12 180:21 181:11 182:6 184:6 185:12 186:3 187:18 188:3 189:6 190:138 191:35 192:1062 193:80 194:55 195:53 196:169 197:4 198:506 199:265 200:253 201:39 202:631 203:426 204:357 205:175 206:189 207:173 208:60 209:119 210:190 211:14 212:132 213:2 214:7 216:79 217:2 218:26 219:8 220:24 222:4 223:2 End of report