Global R&E Routing Table Report 17:10 GMT Tue 29 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/URAN/ Analysis Summary ---------------- BGP routing table entries examined: 18555 Prefixes after maximum aggregation (per Origin AS): 10466 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11733 Total ASes present in the Internet Routing Table: 2722 Prefixes per ASN: 6.82 Origin-only ASes present in the Internet Routing Table: 2328 Origin ASes announcing only one prefix: 1084 Transit ASes present in the Internet Routing Table: 394 Transit-only ASes present in the Internet Routing Table: 67 Average AS path length visible in the Internet Routing Table: 4.8 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: 36456 Number of 32-bit ASNs visible in the Routing Table: 584 Prefixes from 32-bit ASNs in the Routing Table: 1681 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: 207461488 Equivalent to 12 /8s, 93 /16s and 156 /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: 2035 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4782 Total APNIC prefixes after maximum aggregation: 2365 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4784 Unique aggregates announced from the APNIC address blocks: 2701 APNIC Region origin ASes present in the Internet Routing Table: 571 APNIC Prefixes per ASN: 8.38 APNIC Region origin ASes announcing only one prefix: 243 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 211 Number of APNIC addresses announced to Internet: 46320704 Equivalent to 2 /8s, 194 /16s and 204 /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: 8071 Total ARIN prefixes after maximum aggregation: 4629 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 8090 Unique aggregates announced from the ARIN address blocks: 5226 ARIN Region origin ASes present in the Internet Routing Table: 1204 ARIN Prefixes per ASN: 6.72 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 149 Number of ARIN addresses announced to Internet: 96379888 Equivalent to 5 /8s, 190 /16s and 163 /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: 3413 Total RIPE prefixes after maximum aggregation: 2746 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3407 Unique aggregates announced from the RIPE address blocks: 2757 RIPE Region origin ASes present in the Internet Routing Table: 674 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: 109 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: 58147968 Equivalent to 3 /8s, 119 /16s and 68 /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: 1391 Total LACNIC prefixes after maximum aggregation: 522 LACNIC Deaggregation factor: 2.66 Prefixes being announced from the LACNIC address blocks: 1389 Unique aggregates announced from the LACNIC address blocks: 745 LACNIC Region origin ASes present in the Internet Routing Table: 152 LACNIC Prefixes per ASN: 9.14 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 71 Number of LACNIC addresses announced to Internet: 3953088 Equivalent to 0 /8s, 60 /16s and 81 /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: 882 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 4.67 Prefixes being announced from the AfriNIC address blocks: 882 Unique aggregates announced from the AfriNIC address blocks: 301 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 17.64 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2655232 Equivalent to 0 /8s, 40 /16s and 132 /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 SINET-AS Research Organization of Infor 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 1237 192 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 127 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 169 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 82 37 11 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 206 694 178 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 2152 155 507 87 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 2920 112 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 187 1787 185 JANET Jisc Services Limited, GB 8895 173 24 4 ISU Internet Services Unit ISU, SA 559 116 550 107 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 202 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 27884 96 6 2 CABLECOLOR S.A., HN 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 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 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/URAN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 324 319 74 TENET-1, ZA 327687 134 28 3 RENU, UG 36914 98 82 3 KENET-AS, KE 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 37 16 1 MoRENet, MZ 37215 30 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 619 2155 456 SINET-AS Research Organization of Infor 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 2018 324 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 206 694 178 DNIC-AS-00668, US 1916 202 207 41 Associacao Rede Nacional de Ensino e Pe 5786 201 16 1 UPRENET, PR 1237 192 75 137 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 433 404 CSTNET-AS-AP Computer Network Information Cente 2018 324 250 TENET-1, ZA 7896 245 238 NU-AS, US 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 173 169 ISU Internet Services Unit ISU, SA 1916 202 161 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 134 131 RENU, UG 55824 128 106 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/URAN/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/URAN/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/URAN/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNASSIGNED Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK, 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: 20965 GEANT The GEANT IP Service, NL Complete listing at https://bgp.nsrc.org/REN/URAN/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 /16:2039 /17:383 /18:423 /19:586 /20:880 /21:897 /22:1402 /23:1502 /24:10062 /25:81 /26:58 /27:50 /28:1 /29:0 /30:0 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8895 168 173 ISU Internet Services Unit ISU, SA 27884 93 96 CABLECOLOR S.A., HN 36914 85 98 KENET-AS, KE 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 37 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US Complete listing at https://bgp.nsrc.org/REN/URAN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 5:15 6:4 8:2 12:1 14:84 18:41 23:5 24:5 31:6 37:6 38:9 40:1 41:140 42:30 44:5 45:60 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:4 62:7 63:34 64:46 65:1 66:38 67:44 68:8 69:17 71:1 72:11 74:17 76:32 77:7 78:3 79:10 80:14 81:32 82:4 83:7 84:9 85:34 86:9 87:1 88:1 89:10 91:48 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:3 102:10 103:290 104:10 106:1 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:6 117:63 118:35 119:18 121:30 122:8 123:8 124:40 125:13 128:86 129:174 130:91 131:96 132:60 133:137 134:92 136:192 137:144 138:14 139:5 140:47 141:2 142:43 143:39 144:53 146:125 147:70 148:159 149:13 150:38 151:4 152:76 153:11 154:24 155:47 156:64 157:25 158:44 159:115 160:26 161:16 162:16 163:63 164:40 165:16 166:1 167:16 168:110 169:9 170:10 172:2 173:2 175:32 176:8 177:8 178:1 179:11 180:21 181:11 182:5 184:11 185:40 186:3 187:17 188:13 189:6 190:125 191:36 192:1436 193:246 194:143 195:94 196:168 197:4 198:485 199:277 200:208 201:38 202:637 203:427 204:349 205:174 206:185 207:167 208:56 209:113 210:185 211:14 212:168 213:4 214:7 216:79 217:16 218:26 219:14 220:24 222:4 223:2 End of report