Global R&E Routing Table Report 21:27 GMT Mon 03 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 16187 Prefixes after maximum aggregation (per Origin AS): 8251 Deaggregation factor: 1.96 Unique aggregates announced (without unneeded subnets): 9797 Total ASes present in the Internet Routing Table: 2232 Prefixes per ASN: 7.25 Origin-only ASes present in the Internet Routing Table: 1932 Origin ASes announcing only one prefix: 855 Transit ASes present in the Internet Routing Table: 300 Transit-only ASes present in the Internet Routing Table: 49 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: 35910 Number of 32-bit ASNs visible in the Routing Table: 473 Prefixes from 32-bit ASNs in the Routing Table: 1448 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: 146747392 Equivalent to 8 /8s, 191 /16s and 48 /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: 1811 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4271 Total APNIC prefixes after maximum aggregation: 2127 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4271 Unique aggregates announced from the APNIC address blocks: 2607 APNIC Region origin ASes present in the Internet Routing Table: 545 APNIC Prefixes per ASN: 7.84 APNIC Region origin ASes announcing only one prefix: 239 APNIC Region transit ASes present in the Internet Routing Table: 54 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 208 Number of APNIC addresses announced to Internet: 29214720 Equivalent to 1 /8s, 189 /16s and 200 /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, 131072-143673 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: 8351 Total ARIN prefixes after maximum aggregation: 4723 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 8371 Unique aggregates announced from the ARIN address blocks: 5452 ARIN Region origin ASes present in the Internet Routing Table: 1225 ARIN Prefixes per ASN: 6.83 ARIN Region origin ASes announcing only one prefix: 441 ARIN Region transit ASes present in the Internet Routing Table: 160 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: 96942592 Equivalent to 5 /8s, 199 /16s and 58 /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: 920 Total RIPE prefixes after maximum aggregation: 638 RIPE Deaggregation factor: 1.44 Prefixes being announced from the RIPE address blocks: 915 Unique aggregates announced from the RIPE address blocks: 641 RIPE Region origin ASes present in the Internet Routing Table: 206 RIPE Prefixes per ASN: 4.44 RIPE Region origin ASes announcing only one prefix: 95 RIPE Region transit ASes present in the Internet Routing Table: 33 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: 13896960 Equivalent to 0 /8s, 212 /16s and 13 /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: 1421 Total LACNIC prefixes after maximum aggregation: 585 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1420 Unique aggregates announced from the LACNIC address blocks: 820 LACNIC Region origin ASes present in the Internet Routing Table: 177 LACNIC Prefixes per ASN: 8.02 LACNIC Region origin ASes announcing only one prefix: 72 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: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4195072 Equivalent to 0 /8s, 64 /16s and 3 /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: 1208 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 7.41 Prefixes being announced from the AfriNIC address blocks: 1208 Unique aggregates announced from the AfriNIC address blocks: 275 AfriNIC Region origin ASes present in the Internet Routing Table: 26 AfriNIC Prefixes per ASN: 46.46 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 599 2155 447 SINET-AS Research Organization of Infor 7497 426 213 26 CSTNET-AS-AP Computer Network Informati 7575 187 331 133 AARNET-AS-AP Australian Academic and Re 1237 186 75 139 KREONET-AS-KR KISTI, KR 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 83 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 376 236 180 158 RISQ-AS, CA 668 210 718 176 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 48 151 47 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 67 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 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 410 82 3 KENET-AS, KE 2018 325 319 74 TENET-1, ZA 327687 133 28 3 RENU, UG 327700 83 16 1 MoRENet, MZ 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 24 8 1 TERNET, TZ 37501 11 49 6 UOFS, 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 599 2155 447 SINET-AS Research Organization of Infor 7497 426 213 26 CSTNET-AS-AP Computer Network Informati 36914 410 82 3 KENET-AS, KE 2018 325 319 74 TENET-1, ZA 7896 260 51 7 NU-AS, US 376 236 180 158 RISQ-AS, CA 668 210 718 176 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 7575 187 331 133 AARNET-AS-AP Australian Academic and Re 1237 186 75 139 KREONET-AS-KR KISTI, KR 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 410 407 KENET-AS, KE 7497 426 400 CSTNET-AS-AP Computer Network Information Cente 7896 260 253 NU-AS, US 2018 325 251 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 18558 136 132 NETBLK-RCOEK, US 327687 133 130 RENU, UG 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 /16:1453 /17:339 /18:377 /19:487 /20:749 /21:711 /22:1160 /23:1278 /24:9560 /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 382 410 KENET-AS, KE 8895 135 140 ISU Internet Services Unit (ISU), SA 327700 77 83 MoRENet, MZ 23024 53 114 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 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 32440 29 44 LONI, 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 41:295 42:22 44:3 45:51 46:1 47:1 49:10 50:4 52:1 59:19 60:4 61:4 62:2 63:38 64:50 65:6 66:46 67:45 68:9 69:17 71:1 72:11 74:19 76:32 77:4 80:3 81:1 82:2 84:4 85:14 86:9 87:1 89:2 91:17 92:1 93:1 95:1 96:5 97:1 98:2 101:6 102:7 103:297 104:76 106:1 107:16 108:12 109:6 110:3 111:20 112:4 114:23 115:1 116:4 117:61 118:35 119:18 121:20 122:8 123:8 124:40 125:13 128:76 129:213 130:91 131:88 132:60 133:137 134:88 136:192 137:145 138:11 139:5 140:48 141:1 142:43 143:33 144:66 146:125 147:61 148:154 149:13 150:36 151:8 152:76 153:1 154:24 155:53 156:63 157:25 158:45 159:112 160:26 161:34 162:23 163:61 164:40 165:24 166:1 167:15 168:124 169:9 170:67 171:1 172:1 173:7 175:31 176:8 177:7 179:12 180:20 181:11 182:6 184:5 185:13 186:3 187:18 188:3 189:6 190:44 191:36 192:1075 193:78 194:56 195:61 196:169 197:197 198:515 199:274 200:252 201:39 202:531 203:408 204:360 205:182 206:194 207:175 208:60 209:120 210:185 211:13 212:131 213:2 214:7 216:67 217:2 218:26 219:6 220:24 222:2 223:2 End of report