IPv4 R&E Routing Table Report 22:10 GMT Wed 06 Sep, 2023 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: 25260 Prefixes after maximum aggregation (per Origin AS): 12433 Deaggregation factor: 2.03 Unique aggregates announced (without unneeded subnets): 14019 Number of IPv4 prefixes with a valid ROA: 11671 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 13385 Total ASes present in the Internet Routing Table: 2734 Prefixes per ASN: 9.24 Origin-only ASes present in the Internet Routing Table: 2348 Origin ASes announcing only one prefix: 1032 Transit ASes present in the Internet Routing Table: 386 Transit-only ASes present in the Internet Routing Table: 71 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 24 Max AS path prepend of ASN ( 41264) 21 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: 42557 Number of 32-bit ASNs visible in the Routing Table: 631 Prefixes from 32-bit ASNs in the Routing Table: 4670 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: 14 Number of addresses announced to Internet: 241648104 Equivalent to 14 /8s, 103 /16s and 65 /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: 99.5 Total number of prefixes smaller than registry allocations: 3346 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4667 Total APNIC prefixes after maximum aggregation: 2291 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4709 Unique aggregates announced from the APNIC address blocks: 2655 APNIC Region origin ASes present in the Internet Routing Table: 544 APNIC Prefixes per ASN: 8.66 APNIC Region origin ASes announcing only one prefix: 227 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 205 Number of APNIC addresses announced to Internet: 45646656 Equivalent to 2 /8s, 184 /16s and 131 /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: 14285 Total ARIN prefixes after maximum aggregation: 6393 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14081 Unique aggregates announced from the ARIN address blocks: 7153 ARIN Region origin ASes present in the Internet Routing Table: 1218 ARIN Prefixes per ASN: 11.56 ARIN Region origin ASes announcing only one prefix: 422 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 191 Number of ARIN addresses announced to Internet: 131022881 Equivalent to 7 /8s, 207 /16s and 64 /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: 3641 Total RIPE prefixes after maximum aggregation: 2884 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3789 Unique aggregates announced from the RIPE address blocks: 3109 RIPE Region origin ASes present in the Internet Routing Table: 685 RIPE Prefixes per ASN: 5.53 RIPE Region origin ASes announcing only one prefix: 301 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 143 Number of RIPE addresses announced to Internet: 58010112 Equivalent to 3 /8s, 117 /16s and 42 /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, 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: 1641 Total LACNIC prefixes after maximum aggregation: 696 LACNIC Deaggregation factor: 2.36 Prefixes being announced from the LACNIC address blocks: 1645 Unique aggregates announced from the LACNIC address blocks: 892 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 10.03 LACNIC Region origin ASes announcing only one prefix: 56 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4245895 Equivalent to 0 /8s, 64 /16s and 201 /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: 1022 Total AfriNIC prefixes after maximum aggregation: 165 AfriNIC Deaggregation factor: 6.19 Prefixes being announced from the AfriNIC address blocks: 1022 Unique aggregates announced from the AfriNIC address blocks: 196 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 20.86 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2650624 Equivalent to 0 /8s, 40 /16s and 114 /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 603 2163 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 194 74 139 KREONET-AS-KR KISTI, KR 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 125 18 16 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 61 4 1 MAHIDOL-BORDER-AS Mahidol University, T 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 396982 2686 3596 386 GOOGLE-CLOUD-PLATFORM, US 16509 2143 1636 851 AMAZON-02, US 15169 826 1997 61 GOOGLE, US 14618 813 4019 611 AMAZON-AES, US 376 201 178 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 148 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, 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 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 162 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu 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 261 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 115 25 52 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 4270 48 16 1 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 382 319 71 TENET-1, ZA 36914 242 82 3 KENET-AS, KE 327687 163 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, 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 396982 2686 3596 386 GOOGLE-CLOUD-PLATFORM, US 16509 2143 1636 851 AMAZON-02, US 15169 826 1997 61 GOOGLE, US 14618 813 4019 611 AMAZON-AES, US 2907 603 2163 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 261 176 43 Rede Nacional de Ensino e Pesquisa, BR 36914 242 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2143 1292 AMAZON-02, US 15169 826 765 GOOGLE, US 7497 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 36914 242 239 KENET-AS, KE 1916 261 218 Rede Nacional de Ensino e Pesquisa, BR 14618 813 202 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 163 160 RENU, UG 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 144.81.129.0/24 Origin: 14618 AMAZON-AES, US 144.81.129.0/24 Transit: 16509 AMAZON-02, US 144.81.130.0/24 Origin: 14618 AMAZON-AES, US 144.81.130.0/24 Transit: 16509 AMAZON-02, US 144.81.131.0/24 Origin: 14618 AMAZON-AES, US 144.81.131.0/24 Transit: 16509 AMAZON-02, US 144.81.132.0/22 Origin: 14618 AMAZON-AES, US 144.81.132.0/22 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 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2086 /17:499 /18:467 /19:713 /20:2768 /21:1019 /22:1645 /23:1705 /24:13619 /25:91 /26:73 /27:80 /28:22 /29:86 /30:41 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 297 2143 AMAZON-02, US 15169 275 826 GOOGLE, US 14618 265 813 AMAZON-AES, US 36914 231 242 KENET-AS, KE 396982 196 2686 GOOGLE-CLOUD-PLATFORM, US 8895 157 162 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 80 109 LONI, US 23024 52 113 OCDE, US 1916 40 261 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:76 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:63 23:111 24:3 31:9 34:20 35:47 38:9 40:1 41:109 42:10 43:1 44:7 45:61 46:11 47:1 49:9 50:3 52:558 54:228 58:1 59:19 60:4 61:3 62:11 63:37 64:163 65:13 66:70 67:60 68:12 69:36 70:43 71:3 72:13 74:137 76:46 77:11 78:3 79:10 80:13 81:27 82:6 83:6 84:10 85:46 86:10 87:2 88:1 89:17 91:57 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:29 103:287 104:213 107:33 108:102 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:39 125:4 128:87 129:47 130:143 131:62 132:57 133:152 134:105 135:3 136:293 137:143 138:10 139:17 140:38 141:4 142:276 143:22 144:39 145:3 146:143 147:65 148:200 149:17 150:43 151:16 152:149 153:14 154:30 155:73 156:69 157:23 158:40 159:148 160:29 161:36 162:85 163:85 164:20 165:50 166:1 167:22 168:159 169:12 170:132 171:1 172:114 173:114 174:2 175:26 176:11 177:5 178:1 179:9 180:15 182:1 184:4 185:101 186:3 187:18 188:19 189:3 190:5 191:13 192:1467 193:306 194:128 195:62 196:203 197:161 198:496 199:300 200:332 201:36 202:632 203:430 204:369 205:147 206:204 207:190 208:132 209:166 210:190 211:14 212:169 213:15 216:166 217:11 218:22 219:5 220:16 222:2 223:14 End of report