IPv4 R&E Routing Table Report 20:15 GMT Thu 08 May, 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: 262496 Prefixes after maximum aggregation (per Origin AS): 115294 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135577 Number of IPv4 prefixes with a valid ROA: 118014 Number of IPv4 prefixes with an invalid ROA: 45 Number of IPv4 prefixes with no ROA: 144437 Total ASes present in the Internet Routing Table: 19662 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 17004 Origin ASes announcing only one prefix: 7726 Transit ASes present in the Internet Routing Table: 2658 Transit-only ASes present in the Internet Routing Table: 710 Paths with bogon ASNs present in the IPv4 Routing Table: 6 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: 310 Number of instances of unregistered ASNs: 311 Number of 32-bit ASNs allocated by the RIRs: 46364 Number of 32-bit ASNs visible in the Routing Table: 7363 Prefixes from 32-bit ASNs in the Routing Table: 27673 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 136 Number of addresses announced to Internet: 1548605405 Equivalent to 92 /8s, 77 /16s and 215 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 41.8 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: 82777 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32579 Total APNIC prefixes after maximum aggregation: 7586 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 31061 Unique aggregates announced from the APNIC address blocks: 7980 APNIC Region origin ASes present in the Internet Routing Table: 1225 APNIC Prefixes per ASN: 25.36 APNIC Region origin ASes announcing only one prefix: 484 APNIC Region transit ASes present in the Internet Routing Table: 202 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: 557 Number of APNIC addresses announced to Internet: 167665260 Equivalent to 9 /8s, 254 /16s and 94 /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: 125912 Total ARIN prefixes after maximum aggregation: 65312 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122796 Unique aggregates announced from the ARIN address blocks: 65973 ARIN Region origin ASes present in the Internet Routing Table: 9345 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3891 ARIN Region transit ASes present in the Internet Routing Table: 865 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2180 Number of ARIN addresses announced to Internet: 961106401 Equivalent to 57 /8s, 73 /16s and 81 /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: 48537 Total RIPE prefixes after maximum aggregation: 26270 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50298 Unique aggregates announced from the RIPE address blocks: 36666 RIPE Region origin ASes present in the Internet Routing Table: 4573 RIPE Prefixes per ASN: 11.00 RIPE Region origin ASes announcing only one prefix: 1935 RIPE Region transit ASes present in the Internet Routing Table: 693 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1872 Number of RIPE addresses announced to Internet: 281494864 Equivalent to 16 /8s, 199 /16s and 69 /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: 44542 Total LACNIC prefixes after maximum aggregation: 13568 LACNIC Deaggregation factor: 3.28 Prefixes being announced from the LACNIC address blocks: 43685 Unique aggregates announced from the LACNIC address blocks: 20236 LACNIC Region origin ASes present in the Internet Routing Table: 3418 LACNIC Prefixes per ASN: 12.78 LACNIC Region origin ASes announcing only one prefix: 1309 LACNIC Region transit ASes present in the Internet Routing Table: 691 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2608 Number of LACNIC addresses announced to Internet: 96882240 Equivalent to 5 /8s, 198 /16s and 78 /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: 10616 Total AfriNIC prefixes after maximum aggregation: 2350 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 14520 Unique aggregates announced from the AfriNIC address blocks: 4603 AfriNIC Region origin ASes present in the Internet Routing Table: 268 AfriNIC Prefixes per ASN: 54.18 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 146 Number of AfriNIC addresses announced to Internet: 41403904 Equivalent to 2 /8s, 119 /16s and 198 /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 10608 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1701 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 876 56 418 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 505 800 138 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 13316 40824 4634 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2695 205 1645 USDA-1, US 36352 2518 207 1118 AS-COLOCROSSING, US 367 2427 2904 1177 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 488 CELLCO-PART, US 209 1664 4890 274 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 1206 94 985 AKAMAI-ASN1, NL 3257 995 2077 747 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 814 1301 130 SAUDINETSTC-AS, SA 34984 686 76 409 TELLCOM-AS, TR 8452 661 1842 17 TE-AS TE-AS, EG 8376 574 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE 212238 568 41 500 CDNEXT, GB 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 7460 2024 1008 UNINET, MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 22 Telefonica del Peru S.A.A., PE 26615 1003 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 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 1491 389 16 LINKdotNET-AS, EG 24835 1061 553 39 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 975 100 76 ORANGE-COTE-IVOIRE, CI 36935 720 142 185 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 553 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 373 318 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 13316 40824 4634 AMAZON-02, US 9808 10608 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7460 2024 1008 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2695 205 1645 USDA-1, US 36352 2518 207 1118 AS-COLOCROSSING, US 367 2427 2904 1177 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 ATT-INTERNET4, US 11830 1995 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 10608 10513 CHINAMOBILE-CN China Mobile Communications Grou 8151 7460 6452 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1995 1931 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1701 1515 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp 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 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 396831 UNALLOCATED 12.23.198.0/24 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 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 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /11:41 /12:151 /13:206 /14:569 /15:1096 /16:7563 /17:3432 /18:4205 /19:7615 /20:12400 /21:15244 /22:27700 /23:27541 /24:154453 /25:63 /26:85 /27:36 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3961 7460 UNINET, MX 22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2317 13316 AMAZON-02, US 11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR 10620 1089 1930 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 994 2518 AS-COLOCROSSING, US 19901 974 1252 BRSPD-PUBLIC, US 209 964 1664 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:66 2:495 3:701 4:5 5:794 6:155 7:5 8:681 11:171 12:999 13:310 14:113 15:301 16:245 17:6 18:889 20:177 21:4 22:188 23:2582 24:650 27:21 29:19 31:478 32:9 33:1 34:10 35:133 36:1578 37:904 38:1923 39:553 40:62 41:950 42:213 43:194 44:34 45:3633 46:958 47:85 49:20 50:360 51:385 52:1386 54:301 55:1095 56:11 57:16 58:18 59:31 60:16 61:73 62:544 63:762 64:1989 65:1073 66:1611 67:963 68:406 69:1151 70:442 71:202 72:787 74:962 75:426 76:249 77:470 78:340 79:280 80:295 81:352 82:684 83:248 84:342 85:448 86:235 87:239 88:277 89:864 90:103 91:935 92:597 93:466 94:911 95:625 96:288 97:66 98:455 99:166 100:36 101:19 102:415 103:1240 104:1462 105:140 106:16 107:1503 108:563 109:384 110:34 111:1950 112:456 113:39 114:42 115:16 116:62 117:1047 118:64 119:131 120:1186 121:46 122:70 123:76 124:56 125:25 128:466 129:307 130:682 131:893 132:568 133:212 134:509 135:113 136:574 137:498 138:877 139:446 140:709 141:457 142:1027 143:665 144:434 145:135 146:680 147:493 148:881 149:787 150:386 151:634 152:467 153:125 154:1770 155:839 156:1420 157:378 158:549 159:686 160:829 161:667 162:935 163:356 164:713 165:762 166:777 167:637 168:1104 169:144 170:1588 171:122 172:1371 173:834 174:250 175:56 176:664 177:795 178:490 179:666 180:49 181:1740 182:30 183:892 184:453 185:3474 186:2012 187:1482 188:772 189:1775 190:4212 191:427 192:5166 193:1831 194:1215 195:927 196:697 197:1656 198:2747 199:4887 200:3540 201:3229 202:1005 203:742 204:2152 205:1953 206:1560 207:1510 208:1428 209:1935 210:308 211:431 212:932 213:841 214:982 215:42 216:2537 217:416 218:520 219:19 220:26 221:334 222:32 223:770 End of report