IPv4 R&E Routing Table Report 18:45 GMT Tue 01 Aug, 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: 15778 Prefixes after maximum aggregation (per Origin AS): 8262 Deaggregation factor: 1.91 Unique aggregates announced (without unneeded subnets): 9362 Number of IPv4 prefixes with a valid ROA: 3584 Number of IPv4 prefixes with an invalid ROA: 13 Number of IPv4 prefixes with no ROA: 12181 Total ASes present in the Internet Routing Table: 2228 Prefixes per ASN: 7.08 Origin-only ASes present in the Internet Routing Table: 1928 Origin ASes announcing only one prefix: 813 Transit ASes present in the Internet Routing Table: 300 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: 19 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 42359 Number of 32-bit ASNs visible in the Routing Table: 491 Prefixes from 32-bit ASNs in the Routing Table: 1595 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: 2 Number of addresses announced to Internet: 160902144 Equivalent to 9 /8s, 151 /16s and 44 /24s Percentage of available address space announced: 4.3 Percentage of allocated address space announced: 4.3 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: 1570 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4589 Total APNIC prefixes after maximum aggregation: 2236 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4589 Unique aggregates announced from the APNIC address blocks: 2556 APNIC Region origin ASes present in the Internet Routing Table: 532 APNIC Prefixes per ASN: 8.63 APNIC Region origin ASes announcing only one prefix: 224 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 197 Number of APNIC addresses announced to Internet: 45755136 Equivalent to 2 /8s, 186 /16s and 43 /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, 131072-153913 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: 7861 Total ARIN prefixes after maximum aggregation: 4668 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 7869 Unique aggregates announced from the ARIN address blocks: 5177 ARIN Region origin ASes present in the Internet Routing Table: 1232 ARIN Prefixes per ASN: 6.39 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 159 Average ARIN Region AS path length visible: 4.3 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: 95307264 Equivalent to 5 /8s, 174 /16s and 70 /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: 945 Total RIPE prefixes after maximum aggregation: 634 RIPE Deaggregation factor: 1.49 Prefixes being announced from the RIPE address blocks: 940 Unique aggregates announced from the RIPE address blocks: 646 RIPE Region origin ASes present in the Internet Routing Table: 208 RIPE Prefixes per ASN: 4.52 RIPE Region origin ASes announcing only one prefix: 88 RIPE Region transit ASes present in the Internet Routing Table: 33 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 27 Number of RIPE addresses announced to Internet: 13160192 Equivalent to 0 /8s, 200 /16s and 207 /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: 1416 Total LACNIC prefixes after maximum aggregation: 579 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1414 Unique aggregates announced from the LACNIC address blocks: 788 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.47 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 70 Number of LACNIC addresses announced to Internet: 4236800 Equivalent to 0 /8s, 64 /16s and 166 /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: 964 Total AfriNIC prefixes after maximum aggregation: 142 AfriNIC Deaggregation factor: 6.79 Prefixes being announced from the AfriNIC address blocks: 964 Unique aggregates announced from the AfriNIC address blocks: 193 AfriNIC Region origin ASes present in the Internet Routing Table: 25 AfriNIC Prefixes per ASN: 38.56 AfriNIC Region origin ASes announcing only one prefix: 8 AfriNIC Region transit ASes present in the Internet Routing Table: 6 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2442240 Equivalent to 0 /8s, 37 /16s and 68 /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 596 2147 465 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 1237 191 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 123 18 15 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 668 204 652 173 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2152 141 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US 270 118 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 21976 82 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 136 24 5 ISU Internet Services Unit ISU, SA 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 3267 53 63 38 RUNNET, RU 1653 50 151 47 SUNET SUNET Swedish University Network, 1741 39 149 18 FUNETAS, FI 5495 24 7 8 ASN-SPBGU St.Petersburg, Russia, RU 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 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 1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 48 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 47 16 1 Red de Interconexion Universitaria, AR 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 3596 34 4 3 Universidad Autonoma Metropolitana, MX 271640 34 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 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 367 319 71 TENET-1, ZA 36914 257 82 3 KENET-AS, KE 327687 165 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA 31960 5 1 1 EMUNET, MZ 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 596 2147 465 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 367 319 71 TENET-1, ZA 36914 257 82 3 KENET-AS, KE 1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR 668 204 652 173 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 1237 191 74 139 KREONET-AS-KR KISTI, KR 58647 178 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 434 411 CSTNET-AS-AP Computer Network Information Cente 2018 367 296 TENET-1, ZA 36914 257 254 KENET-AS, KE 5786 197 196 UPRENET, PR 1916 221 179 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 165 162 RENU, UG 18558 136 132 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 55824 123 108 NKN-CORE-NW NKN Core Network, IN 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, 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 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /14:30 /15:88 /16:1482 /17:359 /18:388 /19:484 /20:738 /21:685 /22:1200 /23:1282 /24:9012 /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 245 257 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 327700 34 39 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 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) ---------------------------------------------- 1:2 4:2 6:4 8:2 12:1 14:89 23:7 24:3 35:4 38:9 40:1 41:116 42:10 44:3 45:37 47:1 49:6 50:1 52:1 59:19 60:4 61:3 62:5 63:33 64:51 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:40 77:5 80:4 81:1 82:4 84:4 85:17 86:10 87:1 89:2 91:16 92:2 93:1 96:5 97:1 98:2 101:2 102:24 103:251 104:80 108:10 109:6 111:16 114:23 116:6 117:61 118:32 119:18 121:28 122:8 123:8 124:38 125:4 128:84 129:34 130:86 131:49 132:52 133:155 134:102 136:196 137:124 138:9 139:5 140:40 141:1 142:38 143:19 144:23 146:132 147:56 148:186 149:12 150:43 151:10 152:137 153:2 154:30 155:63 156:66 157:23 158:36 159:114 160:29 161:24 162:23 163:84 164:10 165:46 166:1 167:13 168:122 169:8 170:71 171:1 172:3 173:6 175:27 176:8 177:5 179:12 180:15 181:1 182:1 184:3 185:19 186:3 187:18 188:3 189:3 190:20 191:13 192:1052 193:37 194:56 195:42 196:200 197:161 198:483 199:285 200:291 201:39 202:625 203:429 204:352 205:129 206:186 207:167 208:66 209:115 210:185 211:3 212:127 213:3 214:8 216:85 217:1 218:22 219:6 220:16 222:2 223:14 End of report