IPv4 R&E Routing Table Report 18:45 GMT Sat 17 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: 16082 Prefixes after maximum aggregation (per Origin AS): 8528 Deaggregation factor: 1.89 Unique aggregates announced (without unneeded subnets): 9754 Number of IPv4 prefixes with a valid ROA: 2943 Number of IPv4 prefixes with an invalid ROA: 34 Number of IPv4 prefixes with no ROA: 13105 Total ASes present in the Internet Routing Table: 2297 Prefixes per ASN: 7.00 Origin-only ASes present in the Internet Routing Table: 1989 Origin ASes announcing only one prefix: 858 Transit ASes present in the Internet Routing Table: 308 Transit-only ASes present in the Internet Routing Table: 58 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: 40170 Number of 32-bit ASNs visible in the Routing Table: 521 Prefixes from 32-bit ASNs in the Routing Table: 1545 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: 162703104 Equivalent to 9 /8s, 178 /16s and 167 /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: 1621 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4630 Total APNIC prefixes after maximum aggregation: 2307 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4631 Unique aggregates announced from the APNIC address blocks: 2623 APNIC Region origin ASes present in the Internet Routing Table: 589 APNIC Prefixes per ASN: 7.86 APNIC Region origin ASes announcing only one prefix: 259 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: 232 Number of APNIC addresses announced to Internet: 46042624 Equivalent to 2 /8s, 190 /16s and 142 /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: 8223 Total ARIN prefixes after maximum aggregation: 4818 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8233 Unique aggregates announced from the ARIN address blocks: 5433 ARIN Region origin ASes present in the Internet Routing Table: 1254 ARIN Prefixes per ASN: 6.57 ARIN Region origin ASes announcing only one prefix: 448 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: 96778240 Equivalent to 5 /8s, 196 /16s and 184 /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: 927 Total RIPE prefixes after maximum aggregation: 636 RIPE Deaggregation factor: 1.46 Prefixes being announced from the RIPE address blocks: 919 Unique aggregates announced from the RIPE address blocks: 624 RIPE Region origin ASes present in the Internet Routing Table: 205 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 85 RIPE Region transit ASes present in the Internet Routing Table: 30 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: 25 Number of RIPE addresses announced to Internet: 13214720 Equivalent to 0 /8s, 201 /16s and 164 /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: 1390 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1390 Unique aggregates announced from the LACNIC address blocks: 792 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 8.69 LACNIC Region origin ASes announcing only one prefix: 59 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4213760 Equivalent to 0 /8s, 64 /16s and 76 /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: 907 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 4.80 Prefixes being announced from the AfriNIC address blocks: 907 Unique aggregates announced from the AfriNIC address blocks: 280 AfriNIC Region origin ASes present in the Internet Routing Table: 26 AfriNIC Prefixes per ASN: 34.88 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: 2453248 Equivalent to 0 /8s, 37 /16s and 111 /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 566 2156 456 SINET-AS Research Organization of Infor 7497 432 182 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 200 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 99 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 18 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 44 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 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 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 73 TENET-1, ZA 36914 240 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 34 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 566 2156 456 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 373 319 73 TENET-1, ZA 36914 240 82 3 KENET-AS, KE 668 222 703 182 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 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 432 408 CSTNET-AS-AP Computer Network Information Cente 2018 373 300 TENET-1, ZA 36914 240 237 KENET-AS, KE 5786 200 199 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 /16:1504 /17:363 /18:399 /19:490 /20:762 /21:706 /22:1154 /23:1330 /24:9225 /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 227 240 KENET-AS, KE 8895 134 139 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 18632 34 65 VOLCANO-VISION, US 32440 33 48 LONI, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, 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 69:19 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 97:1 98:2 101:6 102:4 103:324 104:74 107:16 108:11 109:7 110:4 111:16 114:23 116:6 117:61 118:32 119:23 121:28 122:8 123:8 124:39 125:4 128:83 129:32 130:90 131:70 132:56 133:145 134:96 136:199 137:68 138:11 139:5 140:59 141:3 142:40 143:29 144:23 146:130 147:57 148:186 149:12 150:130 151:12 152:77 153:2 154:28 155:51 156:65 157:21 158:41 159:115 160:26 161:39 162:26 163:76 164:10 165:59 166:1 167:16 168:119 169:10 170:73 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:15 186:3 187:3 188:3 189:3 190:34 191:36 192:1065 193:81 194:56 195:50 196:160 197:145 198:511 199:272 200:228 201:23 202:630 203:427 204:351 205:132 206:197 207:170 208:70 209:124 210:184 211:13 212:133 213:3 214:8 216:87 217:1 218:22 219:6 220:17 222:5 223:4 End of report