IPv4 R&E Routing Table Report 18:45 GMT Sat 07 Jan, 2023 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: 16123 Prefixes after maximum aggregation (per Origin AS): 8487 Deaggregation factor: 1.90 Unique aggregates announced (without unneeded subnets): 9711 Number of IPv4 prefixes with a valid ROA: 3077 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 13005 Total ASes present in the Internet Routing Table: 2287 Prefixes per ASN: 7.05 Origin-only ASes present in the Internet Routing Table: 1980 Origin ASes announcing only one prefix: 835 Transit ASes present in the Internet Routing Table: 307 Transit-only ASes present in the Internet Routing Table: 59 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 19 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 41034 Number of 32-bit ASNs visible in the Routing Table: 515 Prefixes from 32-bit ASNs in the Routing Table: 1541 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: 1 Number of addresses announced to Internet: 162469120 Equivalent to 9 /8s, 175 /16s and 21 /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: 1642 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4663 Total APNIC prefixes after maximum aggregation: 2288 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4664 Unique aggregates announced from the APNIC address blocks: 2616 APNIC Region origin ASes present in the Internet Routing Table: 577 APNIC Prefixes per ASN: 8.08 APNIC Region origin ASes announcing only one prefix: 247 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 45905152 Equivalent to 2 /8s, 188 /16s and 117 /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: 8203 Total ARIN prefixes after maximum aggregation: 4807 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8215 Unique aggregates announced from the ARIN address blocks: 5404 ARIN Region origin ASes present in the Internet Routing Table: 1254 ARIN Prefixes per ASN: 6.55 ARIN Region origin ASes announcing only one prefix: 441 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 188 Number of ARIN addresses announced to Internet: 96649472 Equivalent to 5 /8s, 194 /16s and 193 /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: 925 Total RIPE prefixes after maximum aggregation: 629 RIPE Deaggregation factor: 1.47 Prefixes being announced from the RIPE address blocks: 918 Unique aggregates announced from the RIPE address blocks: 637 RIPE Region origin ASes present in the Internet Routing Table: 206 RIPE Prefixes per ASN: 4.46 RIPE Region origin ASes announcing only one prefix: 82 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: 13199872 Equivalent to 0 /8s, 201 /16s and 106 /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: 1405 Total LACNIC prefixes after maximum aggregation: 579 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1402 Unique aggregates announced from the LACNIC address blocks: 789 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 8.82 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 24 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: 66 Number of LACNIC addresses announced to Internet: 4220928 Equivalent to 0 /8s, 64 /16s and 104 /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: 923 Total AfriNIC prefixes after maximum aggregation: 180 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 923 Unique aggregates announced from the AfriNIC address blocks: 264 AfriNIC Region origin ASes present in the Internet Routing Table: 28 AfriNIC Prefixes per ASN: 32.96 AfriNIC Region origin ASes announcing only one prefix: 8 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 10 Number of AfriNIC addresses announced to Internet: 2493440 Equivalent to 0 /8s, 38 /16s and 12 /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 580 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re 4538 129 4192 73 ERX-CERNET-BKB China Education and Rese 55824 115 18 12 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 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 668 219 702 180 DNIC-AS-00668, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 148 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 107 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 134 24 4 ISU Internet Services Unit ISU, SA 1103 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL 3267 56 63 41 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 153 10 67 Universidad Juarez Autonoma de Tabasco, 1916 151 207 39 Rede Nacional de Ensino e Pesquisa, BR 11340 97 24 55 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 43 3 15 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 372 319 72 TENET-1, ZA 36914 239 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 41 28 3 RENU, UG 327700 32 16 1 MoRENet, MZ 37182 31 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 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 580 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 372 319 72 TENET-1, ZA 36914 239 82 3 KENET-AS, KE 668 219 702 180 DNIC-AS-00668, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re 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 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 372 300 TENET-1, ZA 36914 239 236 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 134 130 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 1916 151 112 Rede Nacional de Ensino e Pesquisa, BR 55824 115 103 NKN-CORE-NW NKN Core Network, IN 2920 107 100 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 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 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 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 /16:1501 /17:361 /18:400 /19:486 /20:764 /21:707 /22:1203 /23:1323 /24:9229 /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 226 239 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 18632 34 65 VOLCANO-VISION, US 32440 34 49 LONI, US 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 37182 30 31 TERNET, TZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 4:2 6:4 8:2 12:1 14:85 18:43 23:10 24:3 35:6 38:9 40:1 41:142 42:10 44:3 45:27 47:1 49:10 50:3 52:1 58:1 59:20 60:4 61:3 62:5 63:37 64:53 65:5 66:47 67:43 68:9 69:21 70:2 71:1 72:7 74:50 76:37 77:6 80:8 81:1 82:6 84:1 85:18 86:5 87:1 89:2 91:15 92:1 93:1 96:5 97:3 98:2 101:6 102:4 103:314 104:72 107:16 108:11 109:7 110:2 111:16 114:23 116:6 117:61 118:32 119:22 121:27 122:8 123:8 124:39 125:4 128:83 129:34 130:88 131:56 132:62 133:149 134:97 136:198 137:67 138:9 139:6 140:55 141:3 142:40 143:28 144:23 146:129 147:56 148:187 149:12 150:130 151:11 152:77 153:2 154:29 155:52 156:67 157:29 158:37 159:115 160:26 161:38 162:26 163:80 164:10 165:56 166:1 167:16 168:124 169:10 170:73 171:1 172:2 173:7 175:31 176:8 177:10 179:10 180:17 181:1 182:1 184:3 185:15 186:3 187:19 188:3 189:3 190:18 191:36 192:1065 193:82 194:58 195:47 196:157 197:140 198:519 199:283 200:228 201:37 202:629 203:424 204:350 205:135 206:196 207:166 208:70 209:121 210:185 211:14 212:127 213:3 214:8 216:88 217:1 218:22 219:6 220:17 222:5 223:4 End of report