Global R&E Routing Table Report 16:00 GMT Mon 07 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 18872 Prefixes after maximum aggregation (per Origin AS): 10532 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 11771 Total ASes present in the Internet Routing Table: 2734 Prefixes per ASN: 6.90 Origin-only ASes present in the Internet Routing Table: 2340 Origin ASes announcing only one prefix: 1082 Transit ASes present in the Internet Routing Table: 394 Transit-only ASes present in the Internet Routing Table: 62 Average AS path length visible in the Internet Routing Table: 3.8 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: 585 Prefixes from 32-bit ASNs in the Routing Table: 1709 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: 207839674 Equivalent to 12 /8s, 99 /16s and 97 /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: 2272 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4720 Total APNIC prefixes after maximum aggregation: 2353 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4721 Unique aggregates announced from the APNIC address blocks: 2696 APNIC Region origin ASes present in the Internet Routing Table: 568 APNIC Prefixes per ASN: 8.31 APNIC Region origin ASes announcing only one prefix: 240 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 211 Number of APNIC addresses announced to Internet: 46376000 Equivalent to 2 /8s, 195 /16s and 164 /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: 8040 Total ARIN prefixes after maximum aggregation: 4629 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 8064 Unique aggregates announced from the ARIN address blocks: 5209 ARIN Region origin ASes present in the Internet Routing Table: 1202 ARIN Prefixes per ASN: 6.71 ARIN Region origin ASes announcing only one prefix: 428 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 146 Number of ARIN addresses announced to Internet: 96358736 Equivalent to 5 /8s, 190 /16s and 81 /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: 3435 Total RIPE prefixes after maximum aggregation: 2763 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3425 Unique aggregates announced from the RIPE address blocks: 2746 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.09 RIPE Region origin ASes announcing only one prefix: 319 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 127 Number of RIPE addresses announced to Internet: 58206090 Equivalent to 3 /8s, 120 /16s and 39 /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: 1461 Total LACNIC prefixes after maximum aggregation: 585 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1459 Unique aggregates announced from the LACNIC address blocks: 818 LACNIC Region origin ASes present in the Internet Routing Table: 178 LACNIC Prefixes per ASN: 8.20 LACNIC Region origin ASes announcing only one prefix: 74 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.7 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: 4191648 Equivalent to 0 /8s, 63 /16s and 245 /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: 187 AfriNIC Deaggregation factor: 6.42 Prefixes being announced from the AfriNIC address blocks: 1200 Unique aggregates announced from the AfriNIC address blocks: 299 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: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.0 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: 2702592 Equivalent to 0 /8s, 41 /16s and 61 /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 4538 168 4192 72 UNALLOCATED 55824 128 19 22 UNALLOCATED 4621 82 37 11 UNALLOCATED 23570 59 5 11 UNALLOCATED 1659 55 1450 34 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/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 160 507 92 UNALLOCATED 18558 137 18 4 UNALLOCATED 270 117 297 87 UNALLOCATED 2920 112 34 6 UNALLOCATED 21976 86 51 18 UNALLOCATED 1736 80 16 1 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/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 67 647 61 UNALLOCATED 2614 62 32 59 UNALLOCATED 1930 56 82 51 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/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 4270 44 16 1 UNALLOCATED 19611 44 17 2 UNALLOCATED 61468 41 3 15 UNALLOCATED 28614 38 2 2 UNALLOCATED 28571 37 26 15 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 416 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/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 619 2155 456 UNALLOCATED 7497 427 212 24 UNALLOCATED 36914 416 82 3 UNALLOCATED 2018 324 319 74 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/GEANT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 416 413 UNALLOCATED 7497 427 403 UNALLOCATED 2018 324 250 UNALLOCATED 7896 245 238 UNALLOCATED 5786 201 200 UNALLOCATED 58647 176 174 UNALLOCATED 8895 171 167 UNALLOCATED 1916 204 163 UNALLOCATED 18558 137 133 UNALLOCATED 327687 136 133 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/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/GEANT/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/GEANT/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: 20965 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /14:37 /15:118 /16:2043 /17:387 /18:428 /19:584 /20:884 /21:919 /22:1428 /23:1524 /24:10269 /25:79 /26:59 /27:50 /28:1 /29:0 /30:0 /31:0 /32:29 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 390 416 UNALLOCATED 8895 166 171 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/GEANT/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 23:5 24:5 31:6 37:6 38:9 40:1 41:239 42:30 44:5 45:54 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:4 62:11 63:34 64:46 65:1 66:38 67:44 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 84:5 85:34 86:9 87:1 88:1 89:10 91:47 92:1 93:12 94:4 95:4 96:5 97:1 98:2 100:1 101:3 102:9 103:289 104:14 106:1 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:30 122:8 123:8 124:40 125:13 128:79 129:173 130:91 131:91 132:56 133:137 134:92 136:192 137:146 138:11 139:5 140:45 141:2 142:43 143:35 144:53 146:125 147:65 148:159 149:13 150:36 151:5 152:77 153:11 154:24 155:47 156:64 157:25 158:45 159:115 160:26 161:17 162:17 163:65 164:40 165:14 166:1 167:15 168:124 169:9 170:50 172:1 173:2 175:32 176:8 177:7 178:1 179:12 180:21 181:11 182:5 184:8 185:41 186:3 187:17 188:13 189:6 190:44 191:36 192:1431 193:248 194:144 195:98 196:169 197:202 198:482 199:273 200:259 201:38 202:584 203:419 204:348 205:175 206:186 207:168 208:58 209:114 210:184 211:14 212:165 213:4 214:7 216:64 217:16 218:26 219:14 220:24 222:4 223:2 End of report