Global R&E Routing Table Report 17:00 GMT Mon 07 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 17984 Prefixes after maximum aggregation (per Origin AS): 10171 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11431 Total ASes present in the Internet Routing Table: 2694 Prefixes per ASN: 6.68 Origin-only ASes present in the Internet Routing Table: 2300 Origin ASes announcing only one prefix: 1081 Transit ASes present in the Internet Routing Table: 394 Transit-only ASes present in the Internet Routing Table: 68 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: 36257 Number of 32-bit ASNs visible in the Routing Table: 578 Prefixes from 32-bit ASNs in the Routing Table: 1671 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: 203088896 Equivalent to 12 /8s, 26 /16s and 228 /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: 2088 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4661 Total APNIC prefixes after maximum aggregation: 2340 APNIC Deaggregation factor: 1.99 Prefixes being announced from the APNIC address blocks: 4662 Unique aggregates announced from the APNIC address blocks: 2691 APNIC Region origin ASes present in the Internet Routing Table: 566 APNIC Prefixes per ASN: 8.24 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: 46377216 Equivalent to 2 /8s, 195 /16s and 169 /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: 7474 Total ARIN prefixes after maximum aggregation: 4346 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 7493 Unique aggregates announced from the ARIN address blocks: 4902 ARIN Region origin ASes present in the Internet Routing Table: 1171 ARIN Prefixes per ASN: 6.40 ARIN Region origin ASes announcing only one prefix: 431 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: 145 Number of ARIN addresses announced to Internet: 91974656 Equivalent to 5 /8s, 123 /16s and 108 /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: 3363 Total RIPE prefixes after maximum aggregation: 2744 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3356 Unique aggregates announced from the RIPE address blocks: 2741 RIPE Region origin ASes present in the Internet Routing Table: 670 RIPE Prefixes per ASN: 5.01 RIPE Region origin ASes announcing only one prefix: 321 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: 127 Number of RIPE addresses announced to Internet: 58208256 Equivalent to 3 /8s, 120 /16s and 48 /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: 1270 Total LACNIC prefixes after maximum aggregation: 538 LACNIC Deaggregation factor: 2.36 Prefixes being announced from the LACNIC address blocks: 1270 Unique aggregates announced from the LACNIC address blocks: 794 LACNIC Region origin ASes present in the Internet Routing Table: 168 LACNIC Prefixes per ASN: 7.56 LACNIC Region origin ASes announcing only one prefix: 69 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: 72 Number of LACNIC addresses announced to Internet: 3806208 Equivalent to 0 /8s, 58 /16s and 20 /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: 1200 Total AfriNIC prefixes after maximum aggregation: 188 AfriNIC Deaggregation factor: 6.38 Prefixes being announced from the AfriNIC address blocks: 1200 Unique aggregates announced from the AfriNIC address blocks: 300 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 25.53 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 10 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: 2717952 Equivalent to 0 /8s, 41 /16s and 121 /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 168 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 1736 80 16 1 UNALLOCATED 3 78 528 13 UNALLOCATED 22742 67 52 31 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 94 24 54 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 415 82 3 UNALLOCATED 2018 324 319 74 UNALLOCATED 327687 136 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 415 82 3 UNALLOCATED 2018 324 319 74 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 415 412 UNALLOCATED 7497 427 403 UNALLOCATED 2018 324 250 UNALLOCATED 7896 245 238 UNALLOCATED 58647 164 162 UNALLOCATED 1916 179 139 UNALLOCATED 8895 140 136 UNALLOCATED 18558 137 133 UNALLOCATED 327687 136 133 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 /16:1986 /17:375 /18:415 /19:572 /20:851 /21:867 /22:1381 /23:1450 /24:9901 /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 389 415 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 24:6 31:6 37:6 38:9 40:1 41:239 42:31 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 78:3 79:10 80:14 81:32 82:4 83:8 84:9 85:34 86:9 87:1 88:1 89:10 91:46 92:1 93:12 94:4 95:4 96:5 97:1 98:2 100:1 101:3 102:9 103:288 104:14 106:1 108:8 109:8 110:3 111:19 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:27 122:8 123:8 124:40 125:13 128:79 129:173 130:91 131:90 132:56 133:137 134:91 136:2 137:146 138:11 139:4 140:33 141:2 142:43 143:28 144:53 146:125 147:62 148:159 149:13 150:36 151:5 152:72 153:11 154:24 155:47 156:64 157:25 158:45 159:115 160:26 161:17 162:17 163:61 164:40 165:14 166:1 167:15 168:124 169:9 170:50 171:1 172:1 173:2 175:32 176:8 177:5 178:1 179:12 180:21 181:11 182:5 184:8 185:41 186:3 187:17 188:13 189:6 190:44 191:30 192:1397 193:248 194:145 195:98 196:169 197:201 198:465 199:242 200:225 201:38 202:584 203:419 204:350 205:172 206:183 207:169 208:58 209:111 210:184 211:14 212:165 213:4 216:65 217:16 218:26 219:14 220:24 222:4 223:2 End of report