Global R&E Routing Table Report 19:15 GMT Sat 05 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19231 Prefixes after maximum aggregation (per Origin AS): 10704 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 12048 Total ASes present in the Internet Routing Table: 2777 Prefixes per ASN: 6.93 Origin-only ASes present in the Internet Routing Table: 2369 Origin ASes announcing only one prefix: 1086 Transit ASes present in the Internet Routing Table: 408 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 18 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: 589 Prefixes from 32-bit ASNs in the Routing Table: 1695 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 4 Prefixes being announced from unallocated address space: 6 Number of addresses announced to Internet: 208917676 Equivalent to 12 /8s, 115 /16s and 212 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2372 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4791 Total APNIC prefixes after maximum aggregation: 2385 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4789 Unique aggregates announced from the APNIC address blocks: 2716 APNIC Region origin ASes present in the Internet Routing Table: 571 APNIC Prefixes per ASN: 8.39 APNIC Region origin ASes announcing only one prefix: 237 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46352748 Equivalent to 2 /8s, 195 /16s and 73 /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: 8358 Total ARIN prefixes after maximum aggregation: 4783 ARIN Deaggregation factor: 1.75 Prefixes being announced from the ARIN address blocks: 8382 Unique aggregates announced from the ARIN address blocks: 5466 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 6.82 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 166 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 150 Number of ARIN addresses announced to Internet: 97370528 Equivalent to 5 /8s, 205 /16s and 193 /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: 3403 Total RIPE prefixes after maximum aggregation: 2745 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3394 Unique aggregates announced from the RIPE address blocks: 2742 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 320 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: 58208640 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: 1473 Total LACNIC prefixes after maximum aggregation: 589 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1470 Unique aggregates announced from the LACNIC address blocks: 819 LACNIC Region origin ASes present in the Internet Routing Table: 179 LACNIC Prefixes per ASN: 8.21 LACNIC Region origin ASes announcing only one prefix: 73 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4191776 Equivalent to 0 /8s, 63 /16s and 246 /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: 1190 Total AfriNIC prefixes after maximum aggregation: 187 AfriNIC Deaggregation factor: 6.36 Prefixes being announced from the AfriNIC address blocks: 1190 Unique aggregates announced from the AfriNIC address blocks: 299 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 24.29 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.3 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: 2723328 Equivalent to 0 /8s, 41 /16s and 142 /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 194 75 137 UNALLOCATED 7575 180 331 127 UNALLOCATED 55824 128 19 22 UNALLOCATED 4538 123 4192 72 UNALLOCATED 4621 83 45 12 UNALLOCATED 23570 59 5 11 UNALLOCATED 1659 57 1450 34 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 668 211 702 182 UNALLOCATED 5786 201 16 1 UNALLOCATED 2152 165 507 97 UNALLOCATED 18558 137 18 4 UNALLOCATED 270 117 297 87 UNALLOCATED 23024 114 7 17 UNALLOCATED 2920 112 34 6 UNALLOCATED 21976 88 51 18 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/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 90 24 51 UNALLOCATED 1251 66 37 20 UNALLOCATED 2715 60 102 40 UNALLOCATED 61468 45 3 15 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/SingAREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 411 82 3 UNALLOCATED 2018 317 319 71 UNALLOCATED 327687 135 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/SingAREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 630 2155 456 UNALLOCATED 7497 427 212 24 UNALLOCATED 36914 411 82 3 UNALLOCATED 2018 317 319 71 UNALLOCATED 680 273 1996 235 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 668 211 702 182 UNALLOCATED 1916 204 207 41 UNALLOCATED 5786 201 16 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 411 408 UNALLOCATED 7497 427 403 UNALLOCATED 2018 317 246 UNALLOCATED 7896 245 238 UNALLOCATED 5786 201 200 UNALLOCATED 58647 198 196 UNALLOCATED 8895 172 168 UNALLOCATED 1916 204 163 UNALLOCATED 18558 137 133 UNALLOCATED 327687 135 132 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 172.16.150.0/24 9489 UNALLOCATED 172.16.160.0/24 9489 UNALLOCATED 172.30.0.0/16 9489 UNALLOCATED 192.88.99.0/24 1103 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNALLOCATED Transit: 327992 UNALLOCATED 172.16.150.0/24 Origin: 9489 UNALLOCATED Transit: 1237 UNALLOCATED 172.16.160.0/24 Origin: 9489 UNALLOCATED Transit: 1237 UNALLOCATED 172.30.0.0/16 Origin: 9489 UNALLOCATED Transit: 1237 UNALLOCATED 192.31.196.0/24 Origin: 112 UNALLOCATED Transit: 1103 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 /13:18 /14:37 /15:118 /16:2055 /17:387 /18:427 /19:590 /20:897 /21:924 /22:1442 /23:1536 /24:10497 /25:87 /26:66 /27:53 /28:33 /29:31 /30:15 /31:0 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 385 411 UNALLOCATED 8895 167 172 UNALLOCATED 23024 53 114 UNALLOCATED 58647 34 198 UNALLOCATED 327700 33 39 UNALLOCATED 28614 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/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:41 23:6 24:6 31:6 37:6 38:9 40:1 41:237 42:25 44:5 45:54 46:7 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:7 63:38 64:55 65:5 66:53 67:45 68:8 69:17 71:1 72:14 74:19 76:33 77:5 79:10 80:13 81:32 82:4 83:8 84:5 85:33 86:9 87:1 88:1 89:10 91:46 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:2 102:9 103:291 104:76 106:1 107:17 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:8 123:8 124:40 125:13 128:79 129:173 130:91 131:91 132:56 133:137 134:92 136:193 137:146 138:11 139:5 140:48 141:2 142:43 143:35 144:53 146:121 147:66 148:160 149:13 150:37 151:5 152:77 153:11 154:24 155:46 156:64 157:25 158:45 159:115 160:26 161:17 162:25 163:66 164:40 165:14 166:1 167:15 168:124 169:9 170:67 171:1 172:3 173:7 175:32 176:8 177:7 178:1 179:12 180:21 181:11 182:6 184:7 185:41 186:3 187:18 188:13 189:6 190:44 191:36 192:1438 193:247 194:144 195:102 196:165 197:199 198:512 199:274 200:261 201:39 202:589 203:427 204:360 205:175 206:195 207:178 208:62 209:121 210:187 211:14 212:165 213:4 214:7 216:66 217:16 218:26 219:8 220:24 222:4 223:2 End of report