IPv4 R&E Routing Table Report 20:15 GMT Sat 25 Oct, 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: 278518 Prefixes after maximum aggregation (per Origin AS): 118137 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142646 Number of IPv4 prefixes with a valid ROA: 130071 Number of IPv4 prefixes with an invalid ROA: 198 Number of IPv4 prefixes with no ROA: 148249 Total ASes present in the Internet Routing Table: 20186 Prefixes per ASN: 13.80 Origin-only ASes present in the Internet Routing Table: 17405 Origin ASes announcing only one prefix: 7838 Transit ASes present in the Internet Routing Table: 2781 Transit-only ASes present in the Internet Routing Table: 702 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 283 Number of instances of unregistered ASNs: 312 Number of 32-bit ASNs allocated by the RIRs: 47809 Number of 32-bit ASNs visible in the Routing Table: 8022 Prefixes from 32-bit ASNs in the Routing Table: 32817 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 93 Number of addresses announced to Internet: 1628361885 Equivalent to 97 /8s, 14 /16s and 212 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 87060 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38974 Total APNIC prefixes after maximum aggregation: 8278 APNIC Deaggregation factor: 4.71 Prefixes being announced from the APNIC address blocks: 37710 Unique aggregates announced from the APNIC address blocks: 8372 APNIC Region origin ASes present in the Internet Routing Table: 1142 APNIC Prefixes per ASN: 33.02 APNIC Region origin ASes announcing only one prefix: 443 APNIC Region transit ASes present in the Internet Routing Table: 187 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 531 Number of APNIC addresses announced to Internet: 174996068 Equivalent to 10 /8s, 110 /16s and 58 /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: 127404 Total ARIN prefixes after maximum aggregation: 65731 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125174 Unique aggregates announced from the ARIN address blocks: 68904 ARIN Region origin ASes present in the Internet Routing Table: 9152 ARIN Prefixes per ASN: 13.68 ARIN Region origin ASes announcing only one prefix: 3815 ARIN Region transit ASes present in the Internet Routing Table: 844 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2173 Number of ARIN addresses announced to Internet: 1020310249 Equivalent to 60 /8s, 208 /16s and 178 /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: 44967 Total RIPE prefixes after maximum aggregation: 25081 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47360 Unique aggregates announced from the RIPE address blocks: 35823 RIPE Region origin ASes present in the Internet Routing Table: 4421 RIPE Prefixes per ASN: 10.71 RIPE Region origin ASes announcing only one prefix: 1906 RIPE Region transit ASes present in the Internet Routing Table: 695 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: 1828 Number of RIPE addresses announced to Internet: 279448144 Equivalent to 16 /8s, 168 /16s and 10 /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: 56421 Total LACNIC prefixes after maximum aggregation: 16363 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54374 Unique aggregates announced from the LACNIC address blocks: 23944 LACNIC Region origin ASes present in the Internet Routing Table: 4355 LACNIC Prefixes per ASN: 12.49 LACNIC Region origin ASes announcing only one prefix: 1565 LACNIC Region transit ASes present in the Internet Routing Table: 853 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3326 Number of LACNIC addresses announced to Internet: 108141056 Equivalent to 6 /8s, 114 /16s and 26 /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: 10469 Total AfriNIC prefixes after maximum aggregation: 2452 AfriNIC Deaggregation factor: 4.27 Prefixes being announced from the AfriNIC address blocks: 13807 Unique aggregates announced from the AfriNIC address blocks: 5511 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 47.78 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 164 Number of AfriNIC addresses announced to Internet: 45360896 Equivalent to 2 /8s, 180 /16s and 39 /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 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1716 192 50 CMNET-HUNAN-AP China Mobile communication 24444 940 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 654 235 367 CMNET-JIANGXI-AP China Mobile communicati 2907 609 2151 462 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 14379 41104 5383 AMAZON-02, US 22773 4257 3067 372 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3126 242 1748 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 6167 1959 4064 504 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1856 2115 867 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1449 702 722 BRIGHTSPEED, 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 20940 1220 95 1000 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 872 1841 16 TE-AS TE-AS, EG 212238 642 45 564 CDNEXT, GB 34984 576 88 457 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 559 53 25 Jordan Data Communications, JO 5511 528 129 445 OPENTRANSIT, FR 35819 521 517 96 MOBILY-AS Etihad Etisalat Company Mobily, 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 7297 1968 782 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1671 236 1207 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1265 278 34 Techtel LMDS Comunicaciones Interactivas 26615 1022 2486 56 TIM SA, BR 18881 900 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 649 40 194 UFINET PANAMA S.A., PA 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 24835 1362 454 94 RAYA-AS, EG 24863 1021 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 36935 491 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 2018 375 318 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 14379 41104 5383 AMAZON-02, US 9808 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7297 1968 782 UNINET, MX 22773 4257 3067 372 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3126 242 1748 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1959 4064 504 CELLCO-PART, US 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 13113 12994 CHINAMOBILE-CN China Mobile Communications Grou 8151 7297 6515 UNINET, MX 22773 4257 3885 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3173 2980 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1716 1666 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1959 1455 CELLCO-PART, US 36352 2573 1408 AS-COLOCROSSING, US 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /8:14 /9:11 /10:31 /11:51 /12:161 /13:214 /14:585 /15:1096 /16:7679 /17:3438 /18:4141 /19:7639 /20:12576 /21:15861 /22:28366 /23:28693 /24:167724 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3963 7297 UNINET, MX 22773 2627 4257 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14379 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1449 BRIGHTSPEED, US 36352 1038 2573 AS-COLOCROSSING, US 10620 1001 1671 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 939 1265 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:32 2:275 3:950 4:5 5:617 6:157 7:5 8:613 9:5 11:171 12:880 13:485 14:172 15:344 16:278 17:3 18:900 20:198 21:4 22:189 23:2710 24:596 27:56 29:19 31:457 32:13 34:11 35:187 36:3220 37:538 38:2581 39:738 40:94 41:1021 42:171 43:203 44:27 45:4201 46:924 47:146 49:21 50:474 51:391 52:1460 54:357 55:1102 56:11 57:32 58:17 59:33 60:91 61:61 62:523 63:737 64:1949 65:1019 66:1991 67:1032 68:517 69:1209 70:444 71:171 72:742 74:989 75:309 76:241 77:370 78:295 79:263 80:319 81:404 82:762 83:203 84:339 85:593 86:242 87:176 88:282 89:675 90:105 91:898 92:659 93:414 94:854 95:419 96:277 97:50 98:406 99:244 100:22 101:20 102:422 103:1057 104:1577 105:174 106:67 107:1677 108:528 109:346 110:92 111:2509 112:1113 113:32 114:39 115:64 116:55 117:1438 118:84 119:72 120:1666 121:31 122:61 123:178 124:85 125:24 128:550 129:377 130:667 131:1068 132:577 133:221 134:505 135:121 136:616 137:487 138:994 139:438 140:736 141:367 142:1212 143:885 144:416 145:143 146:651 147:476 148:979 149:726 150:209 151:791 152:697 153:177 154:1168 155:947 156:1185 157:445 158:590 159:747 160:607 161:705 162:1009 163:367 164:759 165:631 166:800 167:680 168:1496 169:156 170:1856 171:101 172:1298 173:784 174:287 175:106 176:409 177:880 178:635 179:901 180:35 181:2425 182:29 183:1491 184:439 185:3082 186:3269 187:1659 188:762 189:1867 190:6266 191:539 192:5058 193:1706 194:1086 195:945 196:710 197:1106 198:2698 199:5213 200:4420 201:3695 202:995 203:775 204:2154 205:1796 206:1516 207:1741 208:1547 209:1927 210:344 211:511 212:977 213:707 214:949 215:40 216:2514 217:474 218:657 219:18 220:87 221:503 222:24 223:1532 End of report