Global R&E Routing Table Report 18:45 GMT Tue 18 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 16165 Prefixes after maximum aggregation (per Origin AS): 8266 Deaggregation factor: 1.96 Unique aggregates announced (without unneeded subnets): 9803 Total ASes present in the Internet Routing Table: 2237 Prefixes per ASN: 7.23 Origin-only ASes present in the Internet Routing Table: 1928 Origin ASes announcing only one prefix: 851 Transit ASes present in the Internet Routing Table: 309 Transit-only ASes present in the Internet Routing Table: 55 Average AS path length visible in the Internet Routing Table: 4.4 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: 36028 Number of 32-bit ASNs visible in the Routing Table: 472 Prefixes from 32-bit ASNs in the Routing Table: 1410 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: 2 Number of addresses announced to Internet: 146844672 Equivalent to 8 /8s, 192 /16s and 172 /24s Percentage of available address space announced: 4.0 Percentage of allocated address space announced: 4.0 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: 1772 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4299 Total APNIC prefixes after maximum aggregation: 2138 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4300 Unique aggregates announced from the APNIC address blocks: 2627 APNIC Region origin ASes present in the Internet Routing Table: 545 APNIC Prefixes per ASN: 7.89 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 57 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 207 Number of APNIC addresses announced to Internet: 29220352 Equivalent to 1 /8s, 189 /16s and 222 /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: 8355 Total ARIN prefixes after maximum aggregation: 4727 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 8374 Unique aggregates announced from the ARIN address blocks: 5437 ARIN Region origin ASes present in the Internet Routing Table: 1223 ARIN Prefixes per ASN: 6.85 ARIN Region origin ASes announcing only one prefix: 440 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.4 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: 96961280 Equivalent to 5 /8s, 199 /16s and 131 /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: 922 Total RIPE prefixes after maximum aggregation: 639 RIPE Deaggregation factor: 1.44 Prefixes being announced from the RIPE address blocks: 917 Unique aggregates announced from the RIPE address blocks: 642 RIPE Region origin ASes present in the Internet Routing Table: 208 RIPE Prefixes per ASN: 4.41 RIPE Region origin ASes announcing only one prefix: 97 RIPE Region transit ASes present in the Internet Routing Table: 34 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 29 Number of RIPE addresses announced to Internet: 13971456 Equivalent to 0 /8s, 213 /16s and 48 /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: 1414 Total LACNIC prefixes after maximum aggregation: 584 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1413 Unique aggregates announced from the LACNIC address blocks: 820 LACNIC Region origin ASes present in the Internet Routing Table: 176 LACNIC Prefixes per ASN: 8.03 LACNIC Region origin ASes announcing only one prefix: 71 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: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4193536 Equivalent to 0 /8s, 63 /16s and 253 /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: 1159 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 7.11 Prefixes being announced from the AfriNIC address blocks: 1159 Unique aggregates announced from the AfriNIC address blocks: 275 AfriNIC Region origin ASes present in the Internet Routing Table: 26 AfriNIC Prefixes per ASN: 44.58 AfriNIC Region origin ASes announcing only one prefix: 8 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 3.3 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2497536 Equivalent to 0 /8s, 38 /16s and 28 /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 607 2155 455 SINET-AS Research Organization of Infor 7497 430 213 26 CSTNET-AS-AP Computer Network Informati 1237 187 75 140 KREONET-AS-KR KISTI, KR 7575 187 331 133 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 82 37 11 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 57 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 24151 56 4 21 CNNIC-CRITICAL-AP China Internet Networ Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 260 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 2152 163 507 96 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 23024 114 7 17 OCDE, US 2920 109 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8895 140 24 4 ISU Internet Services Unit (ISU), SA 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 1653 51 151 49 SUNET SUNET Swedish University Network, 1741 43 183 22 FUNETAS, FI 288 26 5 26 ESA Robert Bosch Strasse 5, DE 513 20 87 19 CERN, CH 3267 20 67 17 RUNNET, RU 8674 17 2 11 NETNOD-IX Netnod Internet Exchange Sver 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 29384 13 3 9 QATAR-FOUNDATION, QA Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 179 215 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 423 82 3 KENET-AS, KE 2018 322 319 74 TENET-1, ZA 327687 136 28 3 RENU, UG 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2155 455 SINET-AS Research Organization of Infor 7497 430 213 26 CSTNET-AS-AP Computer Network Informati 36914 423 82 3 KENET-AS, KE 2018 322 319 74 TENET-1, ZA 7896 260 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 1237 187 75 140 KREONET-AS-KR KISTI, KR 7575 187 331 133 AARNET-AS-AP Australian Academic and Re Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 423 420 KENET-AS, KE 7497 430 404 CSTNET-AS-AP Computer Network Information Cente 7896 260 253 NU-AS, US 2018 322 248 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 1916 179 138 Associacao Rede Nacional de Ensino e Pesquisa, 8895 140 136 ISU Internet Services Unit (ISU), SA 327687 136 133 RENU, UG 18558 136 132 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/TENET/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 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/TENET/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US Complete listing at https://bgp.nsrc.org/REN/TENET/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 /12:3 /13:5 /14:16 /15:45 /16:1455 /17:338 /18:380 /19:486 /20:750 /21:714 /22:1155 /23:1280 /24:9534 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 395 423 KENET-AS, KE 8895 135 140 ISU Internet Services Unit (ISU), SA 23024 53 114 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 38 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 18632 29 55 VOLCANO-VISION, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 6:4 8:2 12:1 14:84 18:41 23:7 24:6 35:2 38:9 40:1 41:237 42:22 44:3 45:52 46:1 47:1 49:10 50:4 52:1 59:19 60:4 61:4 62:2 63:38 64:50 65:6 66:53 67:45 68:9 69:17 71:1 72:11 74:19 76:32 77:4 80:3 81:1 82:2 84:2 85:14 86:9 87:1 89:2 91:16 92:1 93:1 95:1 96:6 97:1 98:2 101:6 102:7 103:299 104:76 106:1 107:16 108:12 109:6 110:3 111:20 112:4 114:23 115:1 116:4 117:61 118:35 119:19 121:20 122:8 123:8 124:40 125:13 128:76 129:214 130:91 131:83 132:60 133:137 134:88 136:192 137:148 138:9 139:5 140:48 141:1 142:43 143:33 144:67 146:125 147:61 148:154 149:13 150:36 151:5 152:76 153:1 154:24 155:52 156:63 157:25 158:45 159:114 160:26 161:34 162:22 163:64 164:40 165:24 166:1 167:15 168:124 169:9 170:66 171:1 172:1 173:7 175:31 176:8 177:7 179:12 180:20 181:11 182:6 184:6 185:13 186:3 187:18 188:4 189:6 190:44 191:36 192:1074 193:78 194:57 195:61 196:168 197:206 198:517 199:274 200:250 201:39 202:536 203:419 204:360 205:181 206:193 207:175 208:62 209:120 210:186 211:13 212:131 213:2 214:7 216:66 217:2 218:26 219:6 220:24 222:2 223:2 End of report