Global R&E Routing Table Report 22:00 GMT Mon 07 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22333 Prefixes after maximum aggregation (per Origin AS): 12211 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 14403 Total ASes present in the Internet Routing Table: 2760 Prefixes per ASN: 8.09 Origin-only ASes present in the Internet Routing Table: 2356 Origin ASes announcing only one prefix: 1082 Transit ASes present in the Internet Routing Table: 404 Transit-only ASes present in the Internet Routing Table: 66 Average AS path length visible in the Internet Routing Table: 3.3 Max AS path length visible: 15 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: 584 Prefixes from 32-bit ASNs in the Routing Table: 1702 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: 289200600 Equivalent to 17 /8s, 60 /16s and 217 /24s Percentage of available address space announced: 7.8 Percentage of allocated address space announced: 7.8 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: 3176 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4696 Total APNIC prefixes after maximum aggregation: 2355 APNIC Deaggregation factor: 1.99 Prefixes being announced from the APNIC address blocks: 4748 Unique aggregates announced from the APNIC address blocks: 2750 APNIC Region origin ASes present in the Internet Routing Table: 565 APNIC Prefixes per ASN: 8.40 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 209 Number of APNIC addresses announced to Internet: 47135552 Equivalent to 2 /8s, 207 /16s and 59 /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: 11517 Total ARIN prefixes after maximum aggregation: 6287 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 11402 Unique aggregates announced from the ARIN address blocks: 7672 ARIN Region origin ASes present in the Internet Routing Table: 1225 ARIN Prefixes per ASN: 9.31 ARIN Region origin ASes announcing only one prefix: 435 ARIN Region transit ASes present in the Internet Routing Table: 169 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 147 Number of ARIN addresses announced to Internet: 174576632 Equivalent to 10 /8s, 103 /16s and 211 /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: 3439 Total RIPE prefixes after maximum aggregation: 2772 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3509 Unique aggregates announced from the RIPE address blocks: 2847 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.21 RIPE Region origin ASes announcing only one prefix: 318 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 3.7 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: 59880320 Equivalent to 3 /8s, 145 /16s and 179 /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: 1478 Total LACNIC prefixes after maximum aggregation: 593 LACNIC Deaggregation factor: 2.49 Prefixes being announced from the LACNIC address blocks: 1481 Unique aggregates announced from the LACNIC address blocks: 827 LACNIC Region origin ASes present in the Internet Routing Table: 179 LACNIC Prefixes per ASN: 8.27 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: 4.0 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4752160 Equivalent to 0 /8s, 72 /16s and 131 /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: 1187 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 6.28 Prefixes being announced from the AfriNIC address blocks: 1190 Unique aggregates announced from the AfriNIC address blocks: 304 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 24.79 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: 3.3 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2851328 Equivalent to 0 /8s, 43 /16s and 130 /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 619 2155 456 UNALLOCATED 7497 427 212 24 UNALLOCATED 1237 191 75 137 UNALLOCATED 7575 180 331 127 UNALLOCATED 58647 176 18 2 UNALLOCATED 55824 128 19 22 UNALLOCATED 4538 124 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/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2390 4301 891 UNALLOCATED 14618 485 3966 359 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 668 211 702 182 UNALLOCATED 8075 203 11189 182 UNALLOCATED 5786 201 16 1 UNALLOCATED 2152 160 507 92 UNALLOCATED 18558 137 18 4 UNALLOCATED 1 117 1 41 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/Internet2/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 171 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/Internet2/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 94 24 54 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/Internet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 406 82 3 UNALLOCATED 2018 323 319 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 37501 11 49 6 UNALLOCATED 37182 9 8 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2390 4301 891 UNALLOCATED 2907 619 2155 456 UNALLOCATED 14618 485 3966 359 UNALLOCATED 7497 427 212 24 UNALLOCATED 36914 406 82 3 UNALLOCATED 2018 323 319 74 UNALLOCATED 680 273 1996 235 UNALLOCATED 7896 245 51 7 UNALLOCATED 376 235 180 158 UNALLOCATED 668 211 702 182 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 427 403 UNALLOCATED 36914 406 403 UNALLOCATED 2018 323 249 UNALLOCATED 7896 245 238 UNALLOCATED 5786 201 200 UNALLOCATED 58647 176 174 UNALLOCATED 8895 171 167 UNALLOCATED 2907 619 163 UNALLOCATED 1916 204 163 UNALLOCATED 18558 137 133 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/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/Internet2/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/Internet2/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 /10:4 /11:7 /12:29 /13:33 /14:81 /15:195 /16:2152 /17:454 /18:462 /19:621 /20:977 /21:1026 /22:1581 /23:1688 /24:12706 /25:85 /26:66 /27:118 /28:1 /29:46 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 664 2390 UNALLOCATED 36914 380 406 UNALLOCATED 8895 166 171 UNALLOCATED 14618 158 485 UNALLOCATED 23024 53 56 UNALLOCATED 327700 33 39 UNALLOCATED 1 32 117 UNALLOCATED 28614 32 38 UNALLOCATED 25977 31 45 UNALLOCATED 263282 30 37 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 3:71 4:2 5:15 6:4 8:2 12:1 13:217 14:84 15:10 18:41 23:22 24:6 31:6 37:6 38:9 40:3 41:238 42:26 44:5 45:64 46:10 47:1 49:10 50:4 52:609 54:111 58:2 59:20 60:4 61:4 62:7 63:34 64:126 65:6 66:52 67:57 68:18 69:42 70:9 71:17 72:16 74:39 75:128 76:166 77:7 78:3 79:10 80:14 81:32 82:5 83:8 84:9 85:36 86:9 87:1 88:2 89:11 91:54 92:1 93:12 94:4 95:4 96:6 97:1 98:8 99:178 100:1 101:2 102:9 103:301 104:43 106:1 107:8 108:19 109:8 110:3 111:21 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:11 123:8 124:40 125:13 128:79 129:179 130:120 131:105 132:56 133:137 134:91 135:1 136:203 137:159 138:12 139:16 140:50 141:3 142:61 143:38 144:69 146:126 147:70 148:167 149:16 150:44 151:6 152:77 153:11 154:25 155:52 156:64 157:30 158:48 159:118 160:33 161:20 162:45 163:72 164:48 165:20 166:1 167:17 168:161 169:9 170:93 171:1 172:9 173:19 174:1 175:32 176:11 177:7 178:3 179:13 180:21 181:11 182:6 184:10 185:53 186:3 187:18 188:14 189:6 190:44 191:36 192:1482 193:256 194:146 195:105 196:168 197:193 198:503 199:304 200:261 201:39 202:589 203:431 204:380 205:201 206:198 207:191 208:88 209:132 210:187 211:14 212:166 213:13 214:7 216:93 217:16 218:26 219:8 220:24 222:4 223:2 End of report