Global R&E Routing Table Report 16:15 GMT Sat 05 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14571 Prefixes after maximum aggregation (per Origin AS): 8427 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 9372 Total ASes present in the Internet Routing Table: 2147 Prefixes per ASN: 6.79 Origin-only ASes present in the Internet Routing Table: 1845 Origin ASes announcing only one prefix: 887 Transit ASes present in the Internet Routing Table: 302 Transit-only ASes present in the Internet Routing Table: 35 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 17 Max AS path prepend of ASN ( 5474) 11 Prefixes from unregistered ASNs in the Routing Table: 7 Number of instances of unregistered ASNs: 7 Number of 32-bit ASNs allocated by the RIRs: 36241 Number of 32-bit ASNs visible in the Routing Table: 452 Prefixes from 32-bit ASNs in the Routing Table: 1365 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: 177356896 Equivalent to 10 /8s, 146 /16s and 64 /24s Percentage of available address space announced: 4.8 Percentage of allocated address space announced: 4.8 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: 1723 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3870 Total APNIC prefixes after maximum aggregation: 2060 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 3872 Unique aggregates announced from the APNIC address blocks: 2273 APNIC Region origin ASes present in the Internet Routing Table: 455 APNIC Prefixes per ASN: 8.51 APNIC Region origin ASes announcing only one prefix: 200 APNIC Region transit ASes present in the Internet Routing Table: 48 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 165 Number of APNIC addresses announced to Internet: 45001952 Equivalent to 2 /8s, 174 /16s and 172 /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: 5489 Total ARIN prefixes after maximum aggregation: 3258 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5499 Unique aggregates announced from the ARIN address blocks: 3693 ARIN Region origin ASes present in the Internet Routing Table: 856 ARIN Prefixes per ASN: 6.42 ARIN Region origin ASes announcing only one prefix: 312 ARIN Region transit ASes present in the Internet Routing Table: 116 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 103 Number of ARIN addresses announced to Internet: 71168384 Equivalent to 4 /8s, 61 /16s and 241 /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: 3147 Total RIPE prefixes after maximum aggregation: 2523 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3142 Unique aggregates announced from the RIPE address blocks: 2595 RIPE Region origin ASes present in the Internet Routing Table: 631 RIPE Prefixes per ASN: 4.98 RIPE Region origin ASes announcing only one prefix: 304 RIPE Region transit ASes present in the Internet Routing Table: 101 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 117 Number of RIPE addresses announced to Internet: 56189568 Equivalent to 3 /8s, 89 /16s and 98 /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: 879 Total LACNIC prefixes after maximum aggregation: 395 LACNIC Deaggregation factor: 2.23 Prefixes being announced from the LACNIC address blocks: 878 Unique aggregates announced from the LACNIC address blocks: 512 LACNIC Region origin ASes present in the Internet Routing Table: 121 LACNIC Prefixes per ASN: 7.26 LACNIC Region origin ASes announcing only one prefix: 51 LACNIC Region transit ASes present in the Internet Routing Table: 21 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: 44 Number of LACNIC addresses announced to Internet: 2373504 Equivalent to 0 /8s, 36 /16s and 55 /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: 1179 Total AfriNIC prefixes after maximum aggregation: 185 AfriNIC Deaggregation factor: 6.37 Prefixes being announced from the AfriNIC address blocks: 1179 Unique aggregates announced from the AfriNIC address blocks: 298 AfriNIC Region origin ASes present in the Internet Routing Table: 46 AfriNIC Prefixes per ASN: 25.63 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: 4.9 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2619392 Equivalent to 0 /8s, 39 /16s and 248 /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 618 2155 455 UNALLOCATED 7497 420 209 20 UNALLOCATED 1237 191 75 137 UNALLOCATED 7575 180 331 127 UNALLOCATED 58647 176 18 2 UNALLOCATED 4538 167 4192 72 UNALLOCATED 55824 128 19 22 UNALLOCATED 1659 55 1450 34 UNALLOCATED 2697 55 3 31 UNALLOCATED 132524 48 9 11 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 226 180 149 UNALLOCATED 5786 201 16 1 UNALLOCATED 2152 160 507 92 UNALLOCATED 18558 137 18 4 UNALLOCATED 270 117 297 87 UNALLOCATED 2920 112 34 6 UNALLOCATED 21976 86 51 18 UNALLOCATED 22742 85 62 45 UNALLOCATED 1736 80 16 1 UNALLOCATED 15296 65 5 54 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/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 172 24 4 UNALLOCATED 559 116 550 107 UNALLOCATED 1103 95 1520 84 UNALLOCATED 137 82 677 77 UNALLOCATED 2200 66 647 61 UNALLOCATED 2614 62 32 59 UNALLOCATED 1930 56 82 51 UNALLOCATED 1653 52 151 49 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 120 120 47 UNALLOCATED 11340 90 24 51 UNALLOCATED 1251 66 37 20 UNALLOCATED 2715 51 53 33 UNALLOCATED 4270 44 16 1 UNALLOCATED 61468 41 3 15 UNALLOCATED 263282 37 5 12 UNALLOCATED 20191 31 16 1 UNALLOCATED 28571 27 26 15 UNALLOCATED 271640 27 8 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 412 82 3 UNALLOCATED 2018 314 319 69 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 37501 11 49 6 UNALLOCATED 37182 9 8 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 618 2155 455 UNALLOCATED 7497 420 209 20 UNALLOCATED 36914 412 82 3 UNALLOCATED 2018 314 319 69 UNALLOCATED 680 273 1996 235 UNALLOCATED 376 226 180 149 UNALLOCATED 5786 201 16 1 UNALLOCATED 1237 191 75 137 UNALLOCATED 786 187 1787 185 UNALLOCATED 7575 180 331 127 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 412 409 UNALLOCATED 7497 420 400 UNALLOCATED 2018 314 245 UNALLOCATED 5786 201 200 UNALLOCATED 58647 176 174 UNALLOCATED 8895 172 168 UNALLOCATED 327687 137 134 UNALLOCATED 18558 137 133 UNALLOCATED 55824 128 106 UNALLOCATED 2920 112 106 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/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 36843 UNALLOCATED 108.59.20.0/24 11096 UNALLOCATED 36843 UNALLOCATED 131.91.183.0/24 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 328439 UNALLOCATED 164.160.240.0/20 327992 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNALLOCATED Transit: 327992 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/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 /14:35 /15:103 /16:1685 /17:283 /18:296 /19:470 /20:653 /21:743 /22:1145 /23:1192 /24:7745 /25:78 /26:59 /27:51 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 386 412 UNALLOCATED 8895 167 172 UNALLOCATED 23024 53 56 UNALLOCATED 327700 33 39 UNALLOCATED 263282 30 37 UNALLOCATED 25977 29 32 UNALLOCATED 200521 25 41 UNALLOCATED 1916 24 120 UNALLOCATED 2614 24 62 UNALLOCATED 37215 23 29 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 5:15 8:2 12:1 14:84 24:2 31:3 37:6 38:3 41:239 42:8 44:4 45:35 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:4 64:13 66:6 67:36 68:1 69:13 71:1 72:11 74:8 76:3 77:5 79:10 80:12 81:29 82:2 83:8 84:3 85:28 86:9 87:1 88:1 89:10 91:46 93:11 94:2 95:3 96:5 101:3 102:8 103:207 104:9 106:1 108:3 109:8 110:3 111:16 112:4 114:18 116:4 117:2 118:17 119:18 121:27 122:8 123:8 124:40 125:1 128:66 129:29 130:82 131:84 132:49 133:137 134:83 136:191 137:116 138:11 139:4 140:30 141:2 142:40 143:32 144:27 146:117 147:26 148:7 149:12 150:17 151:3 152:65 153:5 154:24 155:32 156:64 157:25 158:41 159:113 160:26 161:16 162:8 163:60 164:35 165:14 166:1 167:15 168:96 169:8 170:37 172:1 173:2 175:20 176:8 177:4 178:1 179:6 180:21 182:3 184:3 185:35 186:2 187:1 188:13 190:41 191:29 192:1187 193:220 194:111 195:93 196:166 197:198 198:332 199:183 200:162 201:7 202:382 203:284 204:312 205:88 206:144 207:120 208:47 209:94 210:178 211:13 212:165 213:4 216:31 217:16 218:5 219:13 220:12 222:4 223:2 End of report