IPv4 R&E Routing Table Report 18:45 GMT Wed 28 Sep, 2022 IPv4 BGP Table (R&E) as seen at TENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 16131 Prefixes after maximum aggregation (per Origin AS): 8532 Deaggregation factor: 1.89 Unique aggregates announced (without unneeded subnets): 9755 Number of IPv4 prefixes with a valid ROA: 2957 Number of IPv4 prefixes with an invalid ROA: 33 Number of IPv4 prefixes with no ROA: 13141 Total ASes present in the Internet Routing Table: 2296 Prefixes per ASN: 7.03 Origin-only ASes present in the Internet Routing Table: 1986 Origin ASes announcing only one prefix: 853 Transit ASes present in the Internet Routing Table: 310 Transit-only ASes present in the Internet Routing Table: 62 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 17 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 40264 Number of 32-bit ASNs visible in the Routing Table: 517 Prefixes from 32-bit ASNs in the Routing Table: 1537 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: 162817792 Equivalent to 9 /8s, 180 /16s and 103 /24s Percentage of available address space announced: 4.4 Percentage of allocated address space announced: 4.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 1655 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4623 Total APNIC prefixes after maximum aggregation: 2300 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4624 Unique aggregates announced from the APNIC address blocks: 2612 APNIC Region origin ASes present in the Internet Routing Table: 583 APNIC Prefixes per ASN: 7.93 APNIC Region origin ASes announcing only one prefix: 257 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 46038272 Equivalent to 2 /8s, 190 /16s and 125 /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, 131072-151865 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: 8229 Total ARIN prefixes after maximum aggregation: 4828 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 8239 Unique aggregates announced from the ARIN address blocks: 5443 ARIN Region origin ASes present in the Internet Routing Table: 1253 ARIN Prefixes per ASN: 6.58 ARIN Region origin ASes announcing only one prefix: 444 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 188 Number of ARIN addresses announced to Internet: 96895232 Equivalent to 5 /8s, 198 /16s and 129 /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: 929 Total RIPE prefixes after maximum aggregation: 637 RIPE Deaggregation factor: 1.46 Prefixes being announced from the RIPE address blocks: 921 Unique aggregates announced from the RIPE address blocks: 625 RIPE Region origin ASes present in the Internet Routing Table: 205 RIPE Prefixes per ASN: 4.49 RIPE Region origin ASes announcing only one prefix: 84 RIPE Region transit ASes present in the Internet Routing Table: 29 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: 26 Number of RIPE addresses announced to Internet: 13212672 Equivalent to 0 /8s, 201 /16s and 156 /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: 1435 Total LACNIC prefixes after maximum aggregation: 574 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1435 Unique aggregates announced from the LACNIC address blocks: 794 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 8.86 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4218112 Equivalent to 0 /8s, 64 /16s and 93 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 188 AfriNIC Deaggregation factor: 4.84 Prefixes being announced from the AfriNIC address blocks: 910 Unique aggregates announced from the AfriNIC address blocks: 279 AfriNIC Region origin ASes present in the Internet Routing Table: 26 AfriNIC Prefixes per ASN: 35.00 AfriNIC Region origin ASes announcing only one prefix: 7 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 2.6 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2452992 Equivalent to 0 /8s, 37 /16s and 110 /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 568 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 187 74 135 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 4538 128 4192 73 ERX-CERNET-BKB China Education and Rese 55824 115 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 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/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 222 703 182 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 188 16 1 UPRENET, PR 2152 152 507 93 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 108 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 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 139 24 4 ISU Internet Services Unit ISU, SA 1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 3267 51 63 44 RUNNET, RU 1653 50 151 47 SUNET SUNET Swedish University Network, 1741 39 149 18 FUNETAS, FI 3218 21 4 18 COSMOS-3218-AS AS-COSMOS root, RU 8674 17 2 11 NETNOD-IX Netnod AB, SE 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 1101 13 481 13 IP-EEND-AS IP-EEND BV, NL 47862 12 1 4 ANKABUT, AE 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 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 1916 151 207 39 Rede Nacional de Ensino e Pesquisa, BR 11340 96 24 54 Red Universitaria Nacional, CL 1251 64 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 28571 40 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 2018 373 319 72 TENET-1, ZA 36914 245 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 39 28 3 RENU, UG 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 19 1 14 TERNET, TZ 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 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 568 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 373 319 72 TENET-1, ZA 36914 245 82 3 KENET-AS, KE 668 222 703 182 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 188 16 1 UPRENET, PR 1237 187 74 135 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 373 301 TENET-1, ZA 36914 245 242 KENET-AS, KE 5786 188 187 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 139 135 ISU Internet Services Unit ISU, SA 18558 137 133 NETBLK-RCOEK, US 1916 151 112 Rede Nacional de Ensino e Pesquisa, BR 55824 115 104 NKN-CORE-NW NKN Core Network, IN 2920 108 101 LACOE, 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 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Prefixes from the Special Purpose Address Registry (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-spar 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 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 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 /12:9 /13:17 /14:31 /15:88 /16:1506 /17:363 /18:399 /19:491 /20:766 /21:710 /22:1151 /23:1330 /24:9266 /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 232 245 KENET-AS, KE 8895 134 139 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 18632 34 65 VOLCANO-VISION, US 32440 32 47 LONI, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 4:2 6:4 8:2 12:1 14:86 18:43 23:10 24:3 35:6 38:9 40:1 41:126 42:10 44:3 45:31 47:1 49:10 50:3 52:1 58:1 59:20 60:4 61:3 62:4 63:37 64:53 65:5 66:49 67:45 68:9 69:21 70:2 71:1 72:7 74:50 76:37 77:4 80:10 81:1 82:6 84:1 85:20 86:5 87:1 89:2 91:14 92:1 93:1 96:5 97:3 98:2 101:6 102:4 103:314 104:74 107:16 108:11 109:7 110:4 111:16 114:23 116:6 117:61 118:32 119:23 121:28 122:8 123:8 124:39 125:4 128:83 129:33 130:90 131:71 132:60 133:146 134:96 136:188 137:68 138:11 139:5 140:59 141:3 142:40 143:29 144:23 146:130 147:57 148:186 149:12 150:130 151:10 152:77 153:2 154:28 155:51 156:65 157:23 158:42 159:115 160:26 161:40 162:26 163:76 164:10 165:59 166:1 167:16 168:120 169:10 170:73 171:1 172:2 173:6 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:15 186:3 187:19 188:3 189:3 190:34 191:36 192:1069 193:80 194:56 195:50 196:159 197:147 198:516 199:274 200:229 201:38 202:630 203:428 204:353 205:132 206:198 207:170 208:69 209:125 210:185 211:13 212:133 213:3 214:8 216:87 217:1 218:22 219:6 220:17 222:5 223:4 End of report