Global R&E Routing Table Report 17:00 GMT Sat 05 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 17936 Prefixes after maximum aggregation (per Origin AS): 10139 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11407 Total ASes present in the Internet Routing Table: 2693 Prefixes per ASN: 6.66 Origin-only ASes present in the Internet Routing Table: 2298 Origin ASes announcing only one prefix: 1082 Transit ASes present in the Internet Routing Table: 395 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 16 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 16 Number of instances of unregistered ASNs: 16 Number of 32-bit ASNs allocated by the RIRs: 36241 Number of 32-bit ASNs visible in the Routing Table: 575 Prefixes from 32-bit ASNs in the Routing Table: 1646 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: 3 Number of addresses announced to Internet: 202928896 Equivalent to 12 /8s, 24 /16s and 115 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 2074 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4650 Total APNIC prefixes after maximum aggregation: 2336 APNIC Deaggregation factor: 1.99 Prefixes being announced from the APNIC address blocks: 4652 Unique aggregates announced from the APNIC address blocks: 2693 APNIC Region origin ASes present in the Internet Routing Table: 565 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 240 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 210 Number of APNIC addresses announced to Internet: 46306816 Equivalent to 2 /8s, 194 /16s and 150 /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: 7454 Total ARIN prefixes after maximum aggregation: 4328 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 7472 Unique aggregates announced from the ARIN address blocks: 4880 ARIN Region origin ASes present in the Internet Routing Table: 1169 ARIN Prefixes per ASN: 6.39 ARIN Region origin ASes announcing only one prefix: 430 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 144 Number of ARIN addresses announced to Internet: 91890688 Equivalent to 5 /8s, 122 /16s and 36 /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: 3358 Total RIPE prefixes after maximum aggregation: 2740 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3351 Unique aggregates announced from the RIPE address blocks: 2744 RIPE Region origin ASes present in the Internet Routing Table: 671 RIPE Prefixes per ASN: 4.99 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 126 Number of RIPE addresses announced to Internet: 58208512 Equivalent to 3 /8s, 120 /16s and 49 /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: 1265 Total LACNIC prefixes after maximum aggregation: 534 LACNIC Deaggregation factor: 2.37 Prefixes being announced from the LACNIC address blocks: 1265 Unique aggregates announced from the LACNIC address blocks: 789 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 7.57 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: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 71 Number of LACNIC addresses announced to Internet: 3796992 Equivalent to 0 /8s, 57 /16s and 240 /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: 1193 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 6.41 Prefixes being announced from the AfriNIC address blocks: 1193 Unique aggregates announced from the AfriNIC address blocks: 298 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 2.6 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2721280 Equivalent to 0 /8s, 41 /16s and 134 /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 427 212 24 UNALLOCATED 1237 188 75 137 UNALLOCATED 7575 180 331 127 UNALLOCATED 4538 167 4192 72 UNALLOCATED 58647 164 18 2 UNALLOCATED 55824 128 19 22 UNALLOCATED 4621 82 37 11 UNALLOCATED 23570 59 5 11 UNALLOCATED 24151 56 4 21 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 2152 158 507 91 UNALLOCATED 18558 137 18 4 UNALLOCATED 270 117 297 87 UNALLOCATED 2920 109 34 6 UNALLOCATED 21976 86 51 18 UNALLOCATED 22742 86 62 44 UNALLOCATED 1736 80 16 1 UNALLOCATED 3 78 528 13 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 273 1996 235 UNALLOCATED 786 187 1787 185 UNALLOCATED 8895 140 24 4 UNALLOCATED 559 116 550 107 UNALLOCATED 1103 98 1520 85 UNALLOCATED 137 82 677 77 UNALLOCATED 553 72 449 72 UNALLOCATED 2200 66 647 61 UNALLOCATED 2614 62 32 59 UNALLOCATED 1930 56 82 51 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 179 207 40 UNALLOCATED 28391 152 10 66 UNALLOCATED 11340 90 24 51 UNALLOCATED 2715 60 102 40 UNALLOCATED 4270 44 16 1 UNALLOCATED 61468 41 3 15 UNALLOCATED 28614 38 2 2 UNALLOCATED 263282 37 5 12 UNALLOCATED 20191 31 16 1 UNALLOCATED 271640 27 8 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 413 82 3 UNALLOCATED 2018 317 319 71 UNALLOCATED 327687 137 28 3 UNALLOCATED 2561 74 5 34 UNALLOCATED 8094 55 48 4 UNALLOCATED 327700 39 16 1 UNALLOCATED 37215 29 8 1 UNALLOCATED 6879 24 2 9 UNALLOCATED 37074 11 8 2 UNALLOCATED 37501 11 49 6 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2155 455 UNALLOCATED 7497 427 212 24 UNALLOCATED 36914 413 82 3 UNALLOCATED 2018 317 319 71 UNALLOCATED 680 273 1996 235 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 1237 188 75 137 UNALLOCATED 786 187 1787 185 UNALLOCATED 7575 180 331 127 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 413 410 UNALLOCATED 7497 427 403 UNALLOCATED 2018 317 246 UNALLOCATED 7896 245 238 UNALLOCATED 58647 164 162 UNALLOCATED 1916 179 139 UNALLOCATED 8895 140 136 UNALLOCATED 327687 137 134 UNALLOCATED 18558 137 133 UNALLOCATED 55824 128 106 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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 36843 UNALLOCATED 146.201.218.0/24 11096 UNALLOCATED 36843 UNALLOCATED 146.201.219.0/24 11096 UNALLOCATED 22063 UNALLOCATED 153.10.0.0/16 2152 UNALLOCATED 36843 UNALLOCATED 162.223.23.0/24 11096 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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/UbuntuNet/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNALLOCATED Transit: 327992 UNALLOCATED 192.31.196.0/24 Origin: 112 UNALLOCATED Transit: 1103 UNALLOCATED 192.88.99.0/24 Origin: 1103 UNALLOCATED Transit: 11537 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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 /12:10 /13:19 /14:36 /15:117 /16:1984 /17:375 /18:415 /19:570 /20:851 /21:868 /22:1376 /23:1446 /24:9865 /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 36914 387 413 UNALLOCATED 8895 135 140 UNALLOCATED 23024 53 56 UNALLOCATED 327700 33 39 UNALLOCATED 28614 32 38 UNALLOCATED 25977 31 45 UNALLOCATED 263282 30 37 UNALLOCATED 27609 29 45 UNALLOCATED 32440 29 44 UNALLOCATED 40326 29 33 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 8:2 12:1 14:84 18:41 23:5 24:5 31:6 37:6 38:9 40:1 41:240 42:30 44:5 45:54 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:4 62:7 63:34 64:46 65:1 66:38 67:43 68:8 69:17 71:1 72:11 74:19 76:32 77:5 79:10 80:13 81:32 82:4 83:8 84:9 85:33 86:9 87:1 88:1 89:10 91:46 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:3 102:9 103:287 104:14 106:1 108:8 109:8 110:3 111:19 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:30 122:8 123:8 124:40 125:13 128:79 129:173 130:91 131:90 132:56 133:137 134:91 136:2 137:147 138:11 139:4 140:33 141:2 142:43 143:28 144:53 146:121 147:62 148:159 149:13 150:36 151:5 152:72 153:11 154:24 155:46 156:64 157:25 158:45 159:115 160:26 161:17 162:17 163:60 164:40 165:14 166:1 167:15 168:124 169:9 170:50 171:1 172:1 173:2 175:32 176:8 177:5 178:1 179:12 180:21 181:11 182:3 184:7 185:41 186:3 187:17 188:13 189:6 190:44 191:30 192:1396 193:247 194:145 195:102 196:166 197:198 198:465 199:242 200:225 201:38 202:576 203:419 204:344 205:172 206:183 207:165 208:58 209:111 210:184 211:14 212:165 213:4 216:64 217:16 218:26 219:14 220:24 222:4 223:2 End of report