IPv4 R&E Routing Table Report 22:10 GMT Sun 08 May, 2022 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 23300 Prefixes after maximum aggregation (per Origin AS): 12102 Deaggregation factor: 1.93 Unique aggregates announced (without unneeded subnets): 13606 Number of IPv4 prefixes with a valid ROA: 8767 Number of IPv4 prefixes with an invalid ROA: 177 Number of IPv4 prefixes with no ROA: 14356 Total ASes present in the Internet Routing Table: 2744 Prefixes per ASN: 8.49 Origin-only ASes present in the Internet Routing Table: 2361 Origin ASes announcing only one prefix: 1064 Transit ASes present in the Internet Routing Table: 383 Transit-only ASes present in the Internet Routing Table: 60 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 18 Max AS path prepend of ASN ( 1149) 11 Prefixes from unregistered ASNs in the Routing Table: 9 Number of instances of unregistered ASNs: 9 Number of 32-bit ASNs allocated by the RIRs: 39335 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 3329 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: 4 Number of addresses announced to Internet: 239860581 Equivalent to 14 /8s, 75 /16s and 251 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3105 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4770 Total APNIC prefixes after maximum aggregation: 2312 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4807 Unique aggregates announced from the APNIC address blocks: 2650 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 247 APNIC Region transit ASes present in the Internet Routing Table: 71 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 228 Number of APNIC addresses announced to Internet: 45976640 Equivalent to 2 /8s, 189 /16s and 140 /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: 12531 Total ARIN prefixes after maximum aggregation: 6091 ARIN Deaggregation factor: 2.06 Prefixes being announced from the ARIN address blocks: 12371 Unique aggregates announced from the ARIN address blocks: 6842 ARIN Region origin ASes present in the Internet Routing Table: 1211 ARIN Prefixes per ASN: 10.22 ARIN Region origin ASes announcing only one prefix: 430 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 176 Number of ARIN addresses announced to Internet: 129021233 Equivalent to 7 /8s, 176 /16s and 181 /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: 3541 Total RIPE prefixes after maximum aggregation: 2849 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3662 Unique aggregates announced from the RIPE address blocks: 2976 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.44 RIPE Region origin ASes announcing only one prefix: 306 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 16 Number of RIPE region 32-bit ASNs visible in the Routing Table: 133 Number of RIPE addresses announced to Internet: 57933184 Equivalent to 3 /8s, 115 /16s and 253 /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: 1527 Total LACNIC prefixes after maximum aggregation: 654 LACNIC Deaggregation factor: 2.33 Prefixes being announced from the LACNIC address blocks: 1535 Unique aggregates announced from the LACNIC address blocks: 851 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 9.53 LACNIC Region origin ASes announcing only one prefix: 61 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: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61 Number of LACNIC addresses announced to Internet: 4237428 Equivalent to 0 /8s, 64 /16s and 168 /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: 922 Total AfriNIC prefixes after maximum aggregation: 187 AfriNIC Deaggregation factor: 4.93 Prefixes being announced from the AfriNIC address blocks: 921 Unique aggregates announced from the AfriNIC address blocks: 283 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 19.19 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.2 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2691072 Equivalent to 0 /8s, 41 /16s and 16 /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 626 2140 459 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 58647 201 18 2 KAGAWAU-AS Kagawa University, JP 1237 190 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 4538 129 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1685 1600 663 AMAZON-02, US 396982 1589 1838 352 GOOGLE-CLOUD-PLATFORM, US 15169 738 3278 65 GOOGLE, US 14618 595 3988 455 AMAZON-AES, US 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 36492 193 13 52 GOOGLEWIFI, US 2152 154 507 89 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 120 329 88 AS270, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 281 1966 248 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 180 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 96 27 76 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 66 647 61 FR-RENATER Reseau National de telecommu 1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 173 208 45 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 27947 117 0 86 Telconet S.A, EC 11340 106 25 52 Red Universitaria Nacional, CL 1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 44 16 1 Red de Interconexion Universitaria, AR 28614 37 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 375 319 74 TENET-1, ZA 36914 207 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 36 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 18 8 1 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1685 1600 663 AMAZON-02, US 396982 1589 1838 352 GOOGLE-CLOUD-PLATFORM, US 15169 738 3278 65 GOOGLE, US 2907 626 2140 459 SINET-AS Research Organization of Infor 14618 595 3988 455 AMAZON-AES, US 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 74 TENET-1, ZA 680 281 1966 248 DFN Verein zur Foerderung eines Deutsch 36914 207 82 3 KENET-AS, KE 376 202 178 151 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 396982 1589 1237 GOOGLE-CLOUD-PLATFORM, US 15169 738 673 GOOGLE, US 7497 432 408 CSTNET-AS-AP Computer Network Information Cente 2018 375 301 TENET-1, ZA 36914 207 204 KENET-AS, KE 58647 201 199 KAGAWAU-AS Kagawa University, JP 5786 200 199 UPRENET, PR 8895 180 176 ISU Internet Services Unit ISU, SA 2907 626 167 SINET-AS Research Organization of Information a 36492 193 141 GOOGLEWIFI, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 14212 UNALLOCATED 198.189.240.0/24 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 14212 UNALLOCATED 205.155.0.0/19 2152 CSUNET-NW, US 14212 UNALLOCATED 205.155.240.0/20 2152 CSUNET-NW, 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/CEDIA/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/CEDIA/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 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /11:3 /12:19 /13:33 /14:78 /15:180 /16:2091 /17:458 /18:473 /19:704 /20:2032 /21:951 /22:1528 /23:1662 /24:12612 /25:88 /26:67 /27:90 /28:26 /29:99 /30:32 /31:27 /32:44 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 275 738 GOOGLE, US 16509 231 1685 AMAZON-02, US 14618 196 595 AMAZON-AES, US 36914 194 207 KENET-AS, KE 8895 175 180 ISU Internet Services Unit ISU, SA 396982 143 1589 GOOGLE-CLOUD-PLATFORM, US 27947 100 117 Telconet S.A, EC 32440 73 88 LONI, US 23024 53 114 OCDE, US 36492 40 193 GOOGLEWIFI, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 3:56 5:16 8:4 12:1 13:41 14:85 15:44 16:5 18:51 23:73 24:3 31:9 35:34 37:7 38:9 40:1 41:125 42:10 44:5 45:46 46:10 47:1 49:10 50:1 52:507 54:224 58:1 59:20 60:4 61:3 62:7 63:37 64:153 65:7 66:60 67:59 68:10 69:34 70:42 71:3 72:15 74:103 76:38 77:9 78:3 79:10 80:17 81:28 82:5 83:6 84:5 85:44 86:4 87:1 88:1 89:16 91:52 92:1 93:10 94:4 95:4 96:6 97:1 98:9 99:40 101:7 102:13 103:341 104:174 107:34 108:82 109:13 110:4 111:16 114:29 116:7 117:61 118:32 119:23 121:27 122:8 123:8 124:39 125:4 128:91 129:41 130:145 131:84 132:58 133:140 134:95 135:21 136:281 137:88 138:9 139:16 140:38 141:3 142:163 143:39 144:40 145:9 146:138 147:67 148:197 149:17 150:40 151:7 152:80 153:13 154:26 155:55 156:69 157:28 158:46 159:141 160:25 161:29 162:52 163:67 164:27 165:60 166:1 167:22 168:154 169:12 170:83 171:1 172:113 173:107 174:1 175:31 176:12 177:14 178:2 179:8 180:21 182:6 184:8 185:73 186:3 187:19 188:19 189:5 190:22 191:33 192:1439 193:314 194:126 195:83 196:163 197:115 198:484 199:295 200:229 201:35 202:633 203:426 204:348 205:188 206:216 207:183 208:103 209:152 210:184 211:15 212:151 213:15 216:152 217:20 218:22 219:6 220:17 222:5 223:3 End of report