IPv4 R&E Routing Table Report 20:15 GMT Thu 20 Mar, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 269596 Prefixes after maximum aggregation (per Origin AS): 117595 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 141228 Number of IPv4 prefixes with a valid ROA: 122215 Number of IPv4 prefixes with an invalid ROA: 22 Number of IPv4 prefixes with no ROA: 147359 Total ASes present in the Internet Routing Table: 20763 Prefixes per ASN: 12.98 Origin-only ASes present in the Internet Routing Table: 17838 Origin ASes announcing only one prefix: 7952 Transit ASes present in the Internet Routing Table: 2925 Transit-only ASes present in the Internet Routing Table: 753 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 290 Number of instances of unregistered ASNs: 291 Number of 32-bit ASNs allocated by the RIRs: 46115 Number of 32-bit ASNs visible in the Routing Table: 8190 Prefixes from 32-bit ASNs in the Routing Table: 31625 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 127 Number of addresses announced to Internet: 1567024733 Equivalent to 93 /8s, 102 /16s and 230 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 86704 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32150 Total APNIC prefixes after maximum aggregation: 7665 APNIC Deaggregation factor: 4.19 Prefixes being announced from the APNIC address blocks: 30881 Unique aggregates announced from the APNIC address blocks: 8233 APNIC Region origin ASes present in the Internet Routing Table: 1218 APNIC Prefixes per ASN: 25.35 APNIC Region origin ASes announcing only one prefix: 484 APNIC Region transit ASes present in the Internet Routing Table: 218 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 554 Number of APNIC addresses announced to Internet: 169378668 Equivalent to 10 /8s, 24 /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, 131072-155961 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: 125700 Total ARIN prefixes after maximum aggregation: 64661 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123374 Unique aggregates announced from the ARIN address blocks: 66559 ARIN Region origin ASes present in the Internet Routing Table: 9342 ARIN Prefixes per ASN: 13.21 ARIN Region origin ASes announcing only one prefix: 3885 ARIN Region transit ASes present in the Internet Routing Table: 874 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2160 Number of ARIN addresses announced to Internet: 964862689 Equivalent to 57 /8s, 130 /16s and 162 /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: 49682 Total RIPE prefixes after maximum aggregation: 27200 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51371 Unique aggregates announced from the RIPE address blocks: 38006 RIPE Region origin ASes present in the Internet Routing Table: 4731 RIPE Prefixes per ASN: 10.86 RIPE Region origin ASes announcing only one prefix: 1972 RIPE Region transit ASes present in the Internet Routing Table: 710 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1929 Number of RIPE addresses announced to Internet: 288825808 Equivalent to 17 /8s, 55 /16s and 33 /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: 51481 Total LACNIC prefixes after maximum aggregation: 15666 LACNIC Deaggregation factor: 3.29 Prefixes being announced from the LACNIC address blocks: 50093 Unique aggregates announced from the LACNIC address blocks: 24114 LACNIC Region origin ASes present in the Internet Routing Table: 4322 LACNIC Prefixes per ASN: 11.59 LACNIC Region origin ASes announcing only one prefix: 1503 LACNIC Region transit ASes present in the Internet Routing Table: 889 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3400 Number of LACNIC addresses announced to Internet: 100776512 Equivalent to 6 /8s, 1 /16s and 186 /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: 10293 Total AfriNIC prefixes after maximum aggregation: 2188 AfriNIC Deaggregation factor: 4.70 Prefixes being announced from the AfriNIC address blocks: 13750 Unique aggregates announced from the AfriNIC address blocks: 4192 AfriNIC Region origin ASes present in the Internet Routing Table: 270 AfriNIC Prefixes per ASN: 50.93 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147 Number of AfriNIC addresses announced to Internet: 43127552 Equivalent to 2 /8s, 146 /16s and 19 /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 9808 10140 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1573 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1491 192 53 CMNET-HUNAN-AP China Mobile communication 24547 849 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 17561 556 36 227 LCS-AS-AP LARUS Limited, HK 24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 478 779 138 ALIBABA-CN-NET Alibaba US Technology Co., Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12944 39644 3974 AMAZON-02, US 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2521 187 1530 USDA-1, US 367 2436 2902 1180 DNIC-ASBLK-00306-00371, US 36352 2325 194 1066 AS-COLOCROSSING, US 7018 2228 22910 1590 ATT-INTERNET4, US 11776 1878 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1804 3547 466 CELLCO-PART, US 209 1671 4890 278 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1292 101 1036 AKAMAI-ASN1, NL 3257 928 2075 750 GTT-BACKBONE GTT, US 3215 927 4886 285 France Telecom - Orange, FR 34984 913 89 506 TELLCOM-AS, TR 25019 682 1290 134 SAUDINETSTC-AS, SA 8452 602 1842 17 TE-AS TE-AS, EG 212238 571 41 504 CDNEXT, GB 8376 568 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7234 2009 997 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1736 256 1228 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 53 TIM SA, BR 18881 877 1127 31 TELEFONICA BRASIL S.A, BR 28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1457 389 16 LINKdotNET-AS, EG 29571 1073 101 72 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 864 509 44 RAYA-AS, EG 36935 679 520 41 Vodafone-, EG 36992 604 1229 126 ETISALAT-MISR, EG 36914 541 82 3 KENET-AS, KE 37069 459 1030 15 MOBINIL, EG 36903 417 195 306 MT-MPLS, MA 2018 374 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12944 39644 3974 AMAZON-02, US 9808 10140 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 7234 2009 997 UNINET, MX 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2521 187 1530 USDA-1, US 367 2436 2902 1180 DNIC-ASBLK-00306-00371, US 36352 2325 194 1066 AS-COLOCROSSING, US 7018 2228 22910 1590 ATT-INTERNET4, US 11830 1993 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 10140 10053 CHINAMOBILE-CN China Mobile Communications Grou 8151 7234 6237 UNINET, MX 22773 3374 3199 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1878 1661 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1457 1441 LINKdotNET-AS, EG 56047 1491 1438 CMNET-HUNAN-AP China Mobile communications corp 56046 1573 1394 CMNET-JIANGSU-AP China Mobile communications co Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA 23.158.216.0/24 Transit: 22427 GNET-AS, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:43 /12:151 /13:223 /14:579 /15:1104 /16:7624 /17:3465 /18:4210 /19:7733 /20:12506 /21:15596 /22:28383 /23:28229 /24:159481 /25:60 /26:76 /27:35 /28:15 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3790 7234 UNINET, MX 22773 2517 3374 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 12944 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 981 1736 Telmex Colombia S.A., CO 209 966 1671 CENTURYLINK-US-LEGACY-QWEST, US 19901 934 1171 BRSPD-PUBLIC, US 36352 928 2325 AS-COLOCROSSING, US 11776 881 1878 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:65 2:483 3:593 4:5 5:825 6:149 7:5 8:641 11:171 12:1005 13:290 14:141 15:301 16:241 17:5 18:888 20:173 21:4 22:188 23:2567 24:955 27:24 29:19 31:488 32:18 34:10 35:133 36:1226 37:1039 38:2307 39:542 40:54 41:946 42:218 43:208 44:25 45:4193 46:971 47:84 49:55 50:351 51:382 52:1386 54:276 55:1070 56:9 57:19 58:45 59:27 60:16 61:64 62:538 63:780 64:1880 65:1087 66:1629 67:967 68:417 69:1197 70:440 71:210 72:830 74:983 75:434 76:248 77:450 78:354 79:340 80:290 81:350 82:686 83:245 84:372 85:566 86:250 87:251 88:261 89:847 90:104 91:989 92:672 93:481 94:861 95:643 96:285 97:66 98:475 99:161 100:36 101:26 102:337 103:1256 104:1475 105:135 106:62 107:1487 108:546 109:389 110:57 111:1928 112:463 113:39 114:65 115:20 116:53 117:1045 118:164 119:134 120:1167 121:44 122:110 123:148 124:57 125:23 126:1 128:486 129:284 130:670 131:945 132:559 133:213 134:533 135:117 136:561 137:507 138:1022 139:422 140:711 141:436 142:975 143:707 144:421 145:76 146:702 147:495 148:859 149:724 150:374 151:707 152:514 153:127 154:1559 155:799 156:1390 157:374 158:504 159:672 160:835 161:735 162:1010 163:354 164:733 165:835 166:723 167:648 168:1505 169:144 170:1677 171:122 172:1422 173:804 174:254 175:64 176:774 177:1128 178:523 179:801 180:50 181:1903 182:45 183:880 184:507 185:3588 186:2485 187:1471 188:785 189:1749 190:5166 191:508 192:5116 193:1818 194:1256 195:949 196:810 197:1523 198:2690 199:4888 200:4063 201:3393 202:990 203:711 204:2148 205:1981 206:1571 207:1516 208:1373 209:1960 210:300 211:426 212:989 213:864 214:1016 215:42 216:2519 217:447 218:525 219:20 220:25 221:301 222:32 223:740 End of report