Global R&E Routing Table Report 17:10 GMT Mon 06 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/URAN/ Analysis Summary ---------------- BGP routing table entries examined: 18925 Prefixes after maximum aggregation (per Origin AS): 10483 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 11760 Total ASes present in the Internet Routing Table: 2729 Prefixes per ASN: 6.93 Origin-only ASes present in the Internet Routing Table: 2344 Origin ASes announcing only one prefix: 1076 Transit ASes present in the Internet Routing Table: 385 Transit-only ASes present in the Internet Routing Table: 61 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: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 37137 Number of 32-bit ASNs visible in the Routing Table: 590 Prefixes from 32-bit ASNs in the Routing Table: 1764 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 3 Number of addresses announced to Internet: 207358416 Equivalent to 12 /8s, 92 /16s and 9 /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: 2113 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4994 Total APNIC prefixes after maximum aggregation: 2323 APNIC Deaggregation factor: 2.15 Prefixes being announced from the APNIC address blocks: 4995 Unique aggregates announced from the APNIC address blocks: 2648 APNIC Region origin ASes present in the Internet Routing Table: 567 APNIC Prefixes per ASN: 8.81 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 62 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: 212 Number of APNIC addresses announced to Internet: 46129504 Equivalent to 2 /8s, 191 /16s and 225 /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: 8060 Total ARIN prefixes after maximum aggregation: 4629 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 8079 Unique aggregates announced from the ARIN address blocks: 5244 ARIN Region origin ASes present in the Internet Routing Table: 1202 ARIN Prefixes per ASN: 6.72 ARIN Region origin ASes announcing only one prefix: 428 ARIN Region transit ASes present in the Internet Routing Table: 155 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: 154 Number of ARIN addresses announced to Internet: 96329008 Equivalent to 5 /8s, 189 /16s and 221 /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: 3465 Total RIPE prefixes after maximum aggregation: 2750 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3455 Unique aggregates announced from the RIPE address blocks: 2756 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.13 RIPE Region origin ASes announcing only one prefix: 322 RIPE Region transit ASes present in the Internet Routing Table: 112 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: 127 Number of RIPE addresses announced to Internet: 58031232 Equivalent to 3 /8s, 117 /16s and 124 /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: 1485 Total LACNIC prefixes after maximum aggregation: 582 LACNIC Deaggregation factor: 2.55 Prefixes being announced from the LACNIC address blocks: 1483 Unique aggregates announced from the LACNIC address blocks: 808 LACNIC Region origin ASes present in the Internet Routing Table: 172 LACNIC Prefixes per ASN: 8.62 LACNIC Region origin ASes announcing only one prefix: 69 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.7 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: 4186560 Equivalent to 0 /8s, 63 /16s and 225 /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: 910 Total AfriNIC prefixes after maximum aggregation: 193 AfriNIC Deaggregation factor: 4.72 Prefixes being announced from the AfriNIC address blocks: 910 Unique aggregates announced from the AfriNIC address blocks: 301 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 18.20 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 13 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: 26 Number of AfriNIC addresses announced to Internet: 2681344 Equivalent to 0 /8s, 40 /16s and 234 /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 7497 670 214 26 CSTNET-AS-AP Computer Network Informati 2907 620 2156 457 SINET-AS Research Organization of Infor 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 180 330 126 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 172 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 81 37 10 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 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 668 199 700 170 DNIC-AS-00668, US 2152 156 507 85 CSUNET-NW, US 18558 133 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 111 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 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 8895 172 24 4 ISU Internet Services Unit ISU, SA 559 116 550 107 SWITCH Peering requests: peering@switch 1103 97 1520 84 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 3218 65 6 4 COSMOS-3218-AS AS-COSMOS root, RU 2614 62 32 59 ROEDUNET, RO 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 203 207 42 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 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 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/URAN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 337 319 74 TENET-1, ZA 327687 135 28 3 RENU, UG 36914 101 82 3 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 36 16 1 MoRENet, MZ 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 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 7497 670 214 26 CSTNET-AS-AP Computer Network Informati 2907 620 2156 457 SINET-AS Research Organization of Infor 2018 337 319 74 TENET-1, ZA 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 7896 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 1916 203 207 42 Associacao Rede Nacional de Ensino e Pe 5786 201 16 1 UPRENET, PR 668 199 700 170 DNIC-AS-00668, US 1237 188 74 135 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 2018 337 263 TENET-1, ZA 7896 241 234 NU-AS, US 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 172 168 ISU Internet Services Unit ISU, SA 2907 620 163 SINET-AS Research Organization of Information a 1916 203 161 Associacao Rede Nacional de Ensino e Pesquisa, 327687 135 132 RENU, UG 18558 133 129 NETBLK-RCOEK, US 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 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US 14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/URAN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, US 205.166.145.0/24 Origin: 394784 UNASSIGNED 205.166.145.0/24 Transit: 40831 PHS, US 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 /16:2035 /17:387 /18:426 /19:581 /20:878 /21:898 /22:1422 /23:1538 /24:10148 /25:166 /26:143 /27:111 /28:1 /29:0 /30:0 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8895 167 172 ISU Internet Services Unit ISU, SA 7497 128 670 CSTNET-AS-AP Computer Network Information Cente 36914 88 101 KENET-AS, KE 23024 53 56 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 327700 30 36 MoRENet, MZ 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 42 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 23:8 24:5 31:6 37:6 38:9 40:1 41:147 42:13 44:5 45:60 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:3 62:7 63:34 64:46 65:1 66:36 67:43 68:8 69:21 71:1 72:11 74:20 76:32 77:6 78:3 79:10 80:18 81:30 82:4 83:7 84:9 85:35 86:9 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:4 96:5 97:1 98:2 101:3 102:11 103:298 104:15 106:1 108:8 109:8 110:3 111:20 112:4 114:23 116:5 117:61 118:32 119:18 121:27 122:8 123:8 124:41 125:7 128:80 129:174 130:95 131:94 132:60 133:138 134:97 136:193 137:142 138:10 139:5 140:48 141:2 142:43 143:39 144:54 146:125 147:62 148:159 149:13 150:38 151:6 152:77 153:11 154:24 155:49 156:65 157:25 158:45 159:117 160:25 161:16 162:20 163:61 164:40 165:54 166:2 167:16 168:131 169:10 170:51 172:2 173:2 175:32 176:8 177:10 178:1 179:11 180:21 181:11 182:5 184:6 185:41 186:3 187:17 188:12 189:6 190:48 191:36 192:1436 193:283 194:146 195:93 196:178 197:5 198:484 199:277 200:253 201:38 202:623 203:424 204:346 205:175 206:180 207:164 208:58 209:116 210:182 211:14 212:169 213:4 214:7 216:79 217:15 218:25 219:14 220:16 222:4 223:2 End of report