Global R&E Routing Table Report 19:15 GMT Thu 29 Apr, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19173 Prefixes after maximum aggregation (per Origin AS): 10673 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 12027 Total ASes present in the Internet Routing Table: 2757 Prefixes per ASN: 6.95 Origin-only ASes present in the Internet Routing Table: 2362 Origin ASes announcing only one prefix: 1089 Transit ASes present in the Internet Routing Table: 395 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 17 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 35867 Number of 32-bit ASNs visible in the Routing Table: 586 Prefixes from 32-bit ASNs in the Routing Table: 1684 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 4 Prefixes being announced from unallocated address space: 5 Number of addresses announced to Internet: 208718956 Equivalent to 12 /8s, 112 /16s and 204 /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: 2389 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4790 Total APNIC prefixes after maximum aggregation: 2399 APNIC Deaggregation factor: 2.00 Prefixes being announced from the APNIC address blocks: 4786 Unique aggregates announced from the APNIC address blocks: 2725 APNIC Region origin ASes present in the Internet Routing Table: 573 APNIC Prefixes per ASN: 8.35 APNIC Region origin ASes announcing only one prefix: 242 APNIC Region transit ASes present in the Internet Routing Table: 66 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 213 Number of APNIC addresses announced to Internet: 46426732 Equivalent to 2 /8s, 196 /16s and 106 /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: 8439 Total ARIN prefixes after maximum aggregation: 4795 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 8466 Unique aggregates announced from the ARIN address blocks: 5501 ARIN Region origin ASes present in the Internet Routing Table: 1238 ARIN Prefixes per ASN: 6.84 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 150 Number of ARIN addresses announced to Internet: 97357632 Equivalent to 5 /8s, 205 /16s and 143 /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: 3410 Total RIPE prefixes after maximum aggregation: 2755 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3399 Unique aggregates announced from the RIPE address blocks: 2747 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.04 RIPE Region origin ASes announcing only one prefix: 319 RIPE Region transit ASes present in the Internet Routing Table: 110 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: 130 Number of RIPE addresses announced to Internet: 58205056 Equivalent to 3 /8s, 120 /16s and 35 /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: 1272 Total LACNIC prefixes after maximum aggregation: 519 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1270 Unique aggregates announced from the LACNIC address blocks: 746 LACNIC Region origin ASes present in the Internet Routing Table: 150 LACNIC Prefixes per ASN: 8.47 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 3934784 Equivalent to 0 /8s, 60 /16s and 10 /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: 1247 Total AfriNIC prefixes after maximum aggregation: 191 AfriNIC Deaggregation factor: 6.53 Prefixes being announced from the AfriNIC address blocks: 1247 Unique aggregates announced from the AfriNIC address blocks: 303 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 24.94 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2728192 Equivalent to 0 /8s, 41 /16s and 161 /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 630 2156 457 SINET-AS Research Organization of Infor 7497 443 233 33 CSTNET-AS-AP Computer Network Informati 58647 198 18 2 KAGAWAU-AS Kagawa University, JP 1237 192 75 139 KREONET-AS-KR KISTI, KR 7575 187 331 133 AARNET-AS-AP Australian Academic and Re 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4538 123 4192 72 ERX-CERNET-BKB China Education and Rese 4621 84 45 12 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 Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 668 209 702 175 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 2152 165 507 97 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 23024 114 7 17 OCDE, US 2920 112 34 6 LACOE, US 21976 88 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 172 24 4 ISU Internet Services Unit (ISU), SA 559 116 550 107 SWITCH Peering requests: (peering@switc 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 67 647 62 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/SingAREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 203 215 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 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 417 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 327687 134 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 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 630 2156 457 SINET-AS Research Organization of Infor 7497 443 233 33 CSTNET-AS-AP Computer Network Informati 36914 417 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 260 51 7 NU-AS, US 376 236 180 158 RISQ-AS, CA 668 209 702 175 DNIC-AS-00668, US 1916 203 215 41 Associacao Rede Nacional de Ensino e Pe 5786 201 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 417 414 KENET-AS, KE 7497 443 410 CSTNET-AS-AP Computer Network Information Cente 7896 260 253 NU-AS, US 2018 324 250 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 198 196 KAGAWAU-AS Kagawa University, JP 8895 172 168 ISU Internet Services Unit (ISU), SA 1916 203 162 Associacao Rede Nacional de Ensino e Pesquisa, 18558 136 132 NETBLK-RCOEK, US 327687 134 131 RENU, UG Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 172.16.150.0/24 9489 KARINET-AS Korea Aerospace Research Institute, 172.16.160.0/24 9489 KARINET-AS Korea Aerospace Research Institute, 172.30.0.0/16 9489 KARINET-AS Korea Aerospace Research Institute, 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 172.16.150.0/24 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 172.16.160.0/24 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 172.30.0.0/16 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 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/SingAREN/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 /13:18 /14:37 /15:118 /16:2053 /17:389 /18:425 /19:592 /20:892 /21:907 /22:1424 /23:1512 /24:10497 /25:85 /26:66 /27:59 /28:33 /29:32 /30:15 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 389 417 KENET-AS, KE 8895 167 172 ISU Internet Services Unit (ISU), SA 327700 77 83 MoRENet, MZ 23024 53 114 OCDE, US 58647 34 198 KAGAWAU-AS Kagawa University, JP 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 Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 23:6 24:6 31:6 37:6 38:9 40:1 41:282 42:25 44:5 45:58 46:7 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:7 63:38 64:55 65:6 66:45 67:45 68:8 69:17 71:1 72:14 74:17 76:33 77:4 78:3 79:10 80:14 81:32 82:3 83:8 84:5 85:35 86:9 87:1 88:1 89:10 91:47 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:6 102:9 103:300 104:76 106:1 107:17 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:8 123:8 124:40 125:13 128:77 129:219 130:91 131:100 132:60 133:137 134:91 136:193 137:147 138:11 139:5 140:48 141:2 142:43 143:35 144:67 146:125 147:63 148:160 149:13 150:37 151:5 152:77 153:11 154:24 155:53 156:63 157:25 158:44 159:114 160:26 161:17 162:26 163:65 164:40 165:14 166:1 167:15 168:104 169:9 170:26 171:1 172:3 173:7 175:32 176:8 177:7 178:1 179:10 180:21 181:11 182:6 184:7 185:40 186:3 187:18 188:13 189:6 190:28 191:36 192:1444 193:250 194:142 195:100 196:168 197:203 198:518 199:276 200:206 201:39 202:589 203:405 204:361 205:180 206:194 207:179 208:60 209:121 210:187 211:14 212:163 213:4 214:7 216:67 217:16 218:26 219:8 220:24 222:4 223:2 End of report