IPv4 R&E Routing Table Report 18:45 GMT Sun 15 Dec, 2024 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: 4811 Prefixes after maximum aggregation (per Origin AS): 2590 Deaggregation factor: 1.86 Unique aggregates announced (without unneeded subnets): 3061 Number of IPv4 prefixes with a valid ROA: 1920 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 2890 Total ASes present in the Internet Routing Table: 913 Prefixes per ASN: 5.27 Origin-only ASes present in the Internet Routing Table: 731 Origin ASes announcing only one prefix: 399 Transit ASes present in the Internet Routing Table: 182 Transit-only ASes present in the Internet Routing Table: 80 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 28 Max AS path prepend of ASN (138136) 20 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 45980 Number of 32-bit ASNs visible in the Routing Table: 235 Prefixes from 32-bit ASNs in the Routing Table: 414 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: 85060608 Equivalent to 5 /8s, 17 /16s and 236 /24s Percentage of available address space announced: 2.3 Percentage of allocated address space announced: 2.3 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: 822 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1581 Total APNIC prefixes after maximum aggregation: 798 APNIC Deaggregation factor: 1.98 Prefixes being announced from the APNIC address blocks: 1581 Unique aggregates announced from the APNIC address blocks: 962 APNIC Region origin ASes present in the Internet Routing Table: 272 APNIC Prefixes per ASN: 5.81 APNIC Region origin ASes announcing only one prefix: 146 APNIC Region transit ASes present in the Internet Routing Table: 44 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 142 Number of APNIC addresses announced to Internet: 28553728 Equivalent to 1 /8s, 179 /16s and 178 /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: 2161 Total ARIN prefixes after maximum aggregation: 1300 ARIN Deaggregation factor: 1.66 Prefixes being announced from the ARIN address blocks: 2164 Unique aggregates announced from the ARIN address blocks: 1566 ARIN Region origin ASes present in the Internet Routing Table: 428 ARIN Prefixes per ASN: 5.06 ARIN Region origin ASes announcing only one prefix: 184 ARIN Region transit ASes present in the Internet Routing Table: 97 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 10 Number of ARIN region 32-bit ASNs visible in the Routing Table: 58 Number of ARIN addresses announced to Internet: 43461120 Equivalent to 2 /8s, 151 /16s and 42 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 416 Total RIPE prefixes after maximum aggregation: 331 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 411 Unique aggregates announced from the RIPE address blocks: 370 RIPE Region origin ASes present in the Internet Routing Table: 97 RIPE Prefixes per ASN: 4.24 RIPE Region origin ASes announcing only one prefix: 52 RIPE Region transit ASes present in the Internet Routing Table: 16 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 11 Number of RIPE region 32-bit ASNs visible in the Routing Table: 18 Number of RIPE addresses announced to Internet: 10901760 Equivalent to 0 /8s, 166 /16s and 89 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 79 Total LACNIC prefixes after maximum aggregation: 62 LACNIC Deaggregation factor: 1.27 Prefixes being announced from the LACNIC address blocks: 81 Unique aggregates announced from the LACNIC address blocks: 65 LACNIC Region origin ASes present in the Internet Routing Table: 19 LACNIC Prefixes per ASN: 4.26 LACNIC Region origin ASes announcing only one prefix: 10 LACNIC Region transit ASes present in the Internet Routing Table: 8 Average LACNIC Region AS path length visible: 3.4 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 12 Number of LACNIC addresses announced to Internet: 361472 Equivalent to 0 /8s, 5 /16s and 132 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 573 Total AfriNIC prefixes after maximum aggregation: 98 AfriNIC Deaggregation factor: 5.85 Prefixes being announced from the AfriNIC address blocks: 573 Unique aggregates announced from the AfriNIC address blocks: 97 AfriNIC Region origin ASes present in the Internet Routing Table: 16 AfriNIC Prefixes per ASN: 35.81 AfriNIC Region origin ASes announcing only one prefix: 7 AfriNIC Region transit ASes present in the Internet Routing Table: 5 Average AfriNIC Region AS path length visible: 2.4 Max AfriNIC Region AS path length visible: 5 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 1782272 Equivalent to 0 /8s, 27 /16s and 50 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 55824 146 19 20 NKN-CORE-NW NKN Core Network, IN 7497 132 106 7 CSTNET-AS-AP Computer Network Information 7575 123 213 86 AARNET-AS-AP Australian Academic and Rese 4538 117 3596 72 ERX-CERNET-BKB China Education and Resear 2907 80 918 51 SINET-AS Research Organization of Informa 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 38280 50 3 2 MONASHUNI-MY-AS-AP Monash University Sunw 45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Prov 24361 33 56 17 CNGI-NJ-IX-AS-AP CERNET2 IX at Southeast 23767 29 2 9 A-STAR-AS-AP A-STAR, SG 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 376 179 160 130 RISQ-AS, CA 668 78 375 65 DNIC-AS-00668, US 237 73 508 39 MERIT-AS-14, US 7939 60 16 9 UNIVCENTFLA, US 23024 57 4 16 OCDE, US 32440 38 32 2 LONI, US 1767 36 42 12 ILIGHT-NET, US 4 35 16 9 ISI-AS, US 2381 33 126 27 WISCNET1-AS, US 25977 33 8 8 HCCS, 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 1103 78 1564 70 SURFNET-NL SURFnet, The Netherlands, NL 3267 44 20 38 NIKS, RU 1741 38 133 17 FUNETAS, FI 1653 35 145 34 SUNET SUNET Swedish University Network, E 1880 14 1 7 STUPI, SE 8674 14 2 11 NETNOD-IX Netnod AB, SE 1101 13 465 13 IP-EEND-AS IP-EEND BV, NL 224 11 240 11 UNINETT UNINETT, The Norwegian University 29384 8 2 5 QATAR-FOUNDATION, QA 3333 6 1 5 RIPE-NCC-AS Reseaux IP Europeens Network 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 1251 32 31 27 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S 28571 12 37 12 UNIVERSIDADE DE SAO PAULO, BR 269224 7 0 1 Universidade La Salle, BR 61468 5 0 3 CEDIA, EC 11340 3 0 3 Red Universitaria Nacional, CL 268334 3 0 2 Fundacao Universidade Alto Vale do Rio do 269825 3 0 1 UNIVERSIDAD DE LAS AMERICAS, EC 18592 2 2 2 Corporacion Universitaria para el Desarro 268839 2 0 1 Associacao Pro Ensino Superior em Novo Ha 1797 1 16 1 Uruguay, UY 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 278 302 62 TENET-1, ZA 36914 209 18 2 KENET-AS, KE 37215 32 8 1 MAREN, MW 327700 15 16 1 MoRENet, MZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 8094 7 26 5 PUKNET, ZA 37182 3 0 3 TERNET, TZ 37520 3 16 3 Rhodes-Univ, ZA 36944 1 1 1 UBUNTU-UNICAST-AS, MW 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 2018 278 302 62 TENET-1, ZA 36914 209 18 2 KENET-AS, KE 376 179 160 130 RISQ-AS, CA 55824 146 19 20 NKN-CORE-NW NKN Core Network, IN 7497 132 106 7 CSTNET-AS-AP Computer Network Information 7575 123 213 86 AARNET-AS-AP Australian Academic and Rese 4538 117 3596 72 ERX-CERNET-BKB China Education and Resear 2907 80 918 51 SINET-AS Research Organization of Informa 668 78 375 65 DNIC-AS-00668, US 1103 78 1564 70 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 209 207 KENET-AS, KE 55824 146 126 NKN-CORE-NW NKN Core Network, IN 7497 132 125 CSTNET-AS-AP Computer Network Information Cente 7939 60 51 UNIVCENTFLA, US 376 179 49 RISQ-AS, CA 23570 59 48 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 38280 50 48 MONASHUNI-MY-AS-AP Monash University Sunway Cam 4538 117 45 ERX-CERNET-BKB China Education and Research Net 45773 47 42 HECPERN-AS-PK PERN AS Content Servie Provider, 23024 57 41 OCDE, 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 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University 203.9.156.0/24 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 /10:1 /11:1 /12:8 /13:13 /14:22 /15:69 /16:602 /17:119 /18:138 /19:175 /20:258 /21:210 /22:329 /23:375 /24:2490 /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 192 209 KENET-AS, KE 3267 32 44 NIKS, RU 46115 32 33 LUTHER, US 25977 30 33 HCCS, US 27609 29 29 USC-UNIVERSITY-HOSPITAL, US 37215 26 32 MAREN, MW 32440 25 38 LONI, US 1968 21 23 UMASSNET-AS1968, US 22742 18 30 CT-EDU-NET, US 55032 16 16 JAXNET-BH-01, 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 12:2 14:93 23:7 24:3 35:8 38:11 41:226 42:11 44:3 45:44 47:1 49:10 50:2 52:1 59:19 60:5 61:3 62:2 63:32 64:44 65:5 66:43 67:40 68:12 69:18 70:2 71:1 72:7 74:49 76:40 77:8 80:5 81:1 82:4 83:1 84:2 85:20 86:5 87:1 89:2 91:6 92:2 93:1 96:5 97:1 98:2 101:1 102:2 103:292 104:79 108:10 109:4 111:21 113:1 114:24 116:9 117:61 118:33 119:23 121:27 122:8 123:8 124:41 125:5 128:53 129:29 130:18 131:9 132:41 133:10 134:20 137:4 138:8 141:2 144:1 146:14 148:1 149:1 150:3 152:10 154:18 155:10 157:1 158:10 159:3 161:2 162:5 163:20 168:30 169:1 170:2 171:1 180:15 182:1 184:5 185:2 192:165 193:11 194:14 196:85 198:84 199:27 200:12 202:30 203:76 204:22 205:39 206:58 207:34 209:9 214:1 216:3 219:1 End of report