Global R&E Routing Table Report 22:30 GMT Sat 05 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 21828 Prefixes after maximum aggregation (per Origin AS): 11456 Deaggregation factor: 1.91 Unique aggregates announced (without unneeded subnets): 13483 Total ASes present in the Internet Routing Table: 2724 Prefixes per ASN: 8.01 Origin-only ASes present in the Internet Routing Table: 2324 Origin ASes announcing only one prefix: 1071 Transit ASes present in the Internet Routing Table: 400 Transit-only ASes present in the Internet Routing Table: 66 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 17 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 17 Number of instances of unregistered ASNs: 17 Number of 32-bit ASNs allocated by the RIRs: 36241 Number of 32-bit ASNs visible in the Routing Table: 583 Prefixes from 32-bit ASNs in the Routing Table: 1829 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: 239615585 Equivalent to 14 /8s, 72 /16s and 62 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3405 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4745 Total APNIC prefixes after maximum aggregation: 2364 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4754 Unique aggregates announced from the APNIC address blocks: 2714 APNIC Region origin ASes present in the Internet Routing Table: 569 APNIC Prefixes per ASN: 8.36 APNIC Region origin ASes announcing only one prefix: 237 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46321472 Equivalent to 2 /8s, 194 /16s and 207 /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: 10895 Total ARIN prefixes after maximum aggregation: 5440 ARIN Deaggregation factor: 2.00 Prefixes being announced from the ARIN address blocks: 10858 Unique aggregates announced from the ARIN address blocks: 6749 ARIN Region origin ASes present in the Internet Routing Table: 1190 ARIN Prefixes per ASN: 9.12 ARIN Region origin ASes announcing only one prefix: 422 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 149 Number of ARIN addresses announced to Internet: 128122801 Equivalent to 7 /8s, 162 /16s and 255 /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: 3441 Total RIPE prefixes after maximum aggregation: 2784 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3477 Unique aggregates announced from the RIPE address blocks: 2830 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.17 RIPE Region origin ASes announcing only one prefix: 322 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 126 Number of RIPE addresses announced to Internet: 58240128 Equivalent to 3 /8s, 120 /16s and 172 /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: 1539 Total LACNIC prefixes after maximum aggregation: 666 LACNIC Deaggregation factor: 2.31 Prefixes being announced from the LACNIC address blocks: 1545 Unique aggregates announced from the LACNIC address blocks: 889 LACNIC Region origin ASes present in the Internet Routing Table: 173 LACNIC Prefixes per ASN: 8.93 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: 4.6 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 72 Number of LACNIC addresses announced to Internet: 4207344 Equivalent to 0 /8s, 64 /16s and 50 /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: 1191 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 6.40 Prefixes being announced from the AfriNIC address blocks: 1191 Unique aggregates announced from the AfriNIC address blocks: 298 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 24.81 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2719232 Equivalent to 0 /8s, 41 /16s and 126 /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 630 2155 456 UNALLOCATED 7497 427 212 24 UNALLOCATED 58647 198 18 2 UNALLOCATED 1237 191 75 137 UNALLOCATED 7575 180 331 127 UNALLOCATED 55824 128 19 22 UNALLOCATED 4538 123 4192 72 UNALLOCATED 4621 82 37 11 UNALLOCATED 23570 59 5 11 UNALLOCATED 1659 57 1450 34 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1609 1402 457 UNALLOCATED 15169 732 3278 65 UNALLOCATED 14618 484 3966 358 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 5786 201 16 1 UNALLOCATED 2152 160 507 92 UNALLOCATED 36492 137 9 41 UNALLOCATED 18558 132 18 4 UNALLOCATED 396982 132 71 96 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 204 207 41 UNALLOCATED 28391 152 10 66 UNALLOCATED 11340 106 25 52 UNALLOCATED 27947 102 0 85 UNALLOCATED 1251 66 37 20 UNALLOCATED 2715 60 102 40 UNALLOCATED 4270 44 16 1 UNALLOCATED 19611 44 17 2 UNALLOCATED 28614 38 2 2 UNALLOCATED 28571 37 26 15 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 412 82 3 UNALLOCATED 2018 317 319 71 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/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1609 1402 457 UNALLOCATED 15169 732 3278 65 UNALLOCATED 2907 630 2155 456 UNALLOCATED 14618 484 3966 358 UNALLOCATED 7497 427 212 24 UNALLOCATED 36914 412 82 3 UNALLOCATED 2018 317 319 71 UNALLOCATED 680 273 1996 235 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 15169 732 667 UNALLOCATED 36914 412 409 UNALLOCATED 7497 427 403 UNALLOCATED 2018 317 246 UNALLOCATED 7896 245 238 UNALLOCATED 5786 201 200 UNALLOCATED 58647 198 196 UNALLOCATED 2907 630 174 UNALLOCATED 8895 172 168 UNALLOCATED 1916 204 163 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/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/CEDIA/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/CEDIA/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/CEDIA/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 /11:3 /12:17 /13:32 /14:77 /15:154 /16:2102 /17:406 /18:441 /19:711 /20:942 /21:958 /22:1493 /23:1596 /24:12512 /25:87 /26:70 /27:57 /28:37 /29:86 /30:31 /31:7 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 516 1609 UNALLOCATED 36914 386 412 UNALLOCATED 15169 275 732 UNALLOCATED 8895 167 172 UNALLOCATED 14618 158 484 UNALLOCATED 27947 97 102 UNALLOCATED 23024 53 56 UNALLOCATED 36492 40 137 UNALLOCATED 58647 34 198 UNALLOCATED 327700 33 39 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 3:46 5:15 8:4 12:1 13:156 14:84 15:5 18:41 23:48 24:6 31:6 37:6 38:9 40:1 41:237 42:25 44:5 45:56 46:9 47:1 49:10 50:1 52:428 54:93 58:1 59:20 60:4 61:4 62:7 63:35 64:133 65:5 66:56 67:56 68:10 69:31 70:12 71:3 72:14 74:97 75:128 76:166 77:7 79:10 80:13 81:32 82:5 83:8 84:4 85:36 86:9 87:1 88:2 89:15 91:51 92:2 93:12 94:4 95:4 96:6 97:1 98:7 99:164 101:2 102:9 103:297 104:86 106:1 107:2 108:46 109:9 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:8 123:8 124:40 125:13 128:79 129:174 130:112 131:91 132:56 133:137 134:91 135:8 136:248 137:159 138:11 139:16 140:36 141:3 142:159 143:50 144:68 146:137 147:67 148:164 149:18 150:36 151:6 152:78 153:11 154:24 155:49 156:64 157:26 158:46 159:118 160:26 161:20 162:31 163:63 164:47 165:16 166:1 167:16 168:148 169:9 170:69 171:1 172:96 173:87 174:1 175:32 176:11 177:7 178:3 179:11 180:21 181:12 182:6 184:9 185:56 186:3 187:18 188:17 189:6 190:31 191:36 192:1417 193:253 194:142 195:105 196:166 197:200 198:480 199:262 200:246 201:36 202:583 203:428 204:359 205:195 206:208 207:184 208:81 209:149 210:187 211:14 212:167 213:12 216:110 217:18 218:26 219:8 220:24 222:4 223:2 End of report