IPv4 R&E Routing Table Report 20:15 GMT Sun 19 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: 278570 Prefixes after maximum aggregation (per Origin AS): 118196 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 143006 Number of IPv4 prefixes with a valid ROA: 129992 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148368 Total ASes present in the Internet Routing Table: 20278 Prefixes per ASN: 13.74 Origin-only ASes present in the Internet Routing Table: 17500 Origin ASes announcing only one prefix: 7891 Transit ASes present in the Internet Routing Table: 2778 Transit-only ASes present in the Internet Routing Table: 684 Paths with bogon ASNs present in the IPv4 Routing Table: 50 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: 284 Number of instances of unregistered ASNs: 350 Number of 32-bit ASNs allocated by the RIRs: 47761 Number of 32-bit ASNs visible in the Routing Table: 8034 Prefixes from 32-bit ASNs in the Routing Table: 32974 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 101 Number of addresses announced to Internet: 1628750501 Equivalent to 97 /8s, 20 /16s and 194 /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: 87272 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38710 Total APNIC prefixes after maximum aggregation: 7873 APNIC Deaggregation factor: 4.92 Prefixes being announced from the APNIC address blocks: 37515 Unique aggregates announced from the APNIC address blocks: 8290 APNIC Region origin ASes present in the Internet Routing Table: 1135 APNIC Prefixes per ASN: 33.05 APNIC Region origin ASes announcing only one prefix: 442 APNIC Region transit ASes present in the Internet Routing Table: 185 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: 517 Number of APNIC addresses announced to Internet: 174816876 Equivalent to 10 /8s, 107 /16s and 126 /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: 127510 Total ARIN prefixes after maximum aggregation: 65843 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125315 Unique aggregates announced from the ARIN address blocks: 69030 ARIN Region origin ASes present in the Internet Routing Table: 9210 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 3850 ARIN Region transit ASes present in the Internet Routing Table: 847 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2183 Number of ARIN addresses announced to Internet: 1020602345 Equivalent to 60 /8s, 213 /16s and 39 /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: 45167 Total RIPE prefixes after maximum aggregation: 25223 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47557 Unique aggregates announced from the RIPE address blocks: 35732 RIPE Region origin ASes present in the Internet Routing Table: 4445 RIPE Prefixes per ASN: 10.70 RIPE Region origin ASes announcing only one prefix: 1913 RIPE Region transit ASes present in the Internet Routing Table: 696 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: 1824 Number of RIPE addresses announced to Internet: 281094224 Equivalent to 16 /8s, 193 /16s and 40 /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: 56202 Total LACNIC prefixes after maximum aggregation: 16345 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54164 Unique aggregates announced from the LACNIC address blocks: 24049 LACNIC Region origin ASes present in the Internet Routing Table: 4373 LACNIC Prefixes per ASN: 12.39 LACNIC Region origin ASes announcing only one prefix: 1574 LACNIC Region transit ASes present in the Internet Routing Table: 855 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: 3341 Number of LACNIC addresses announced to Internet: 107802368 Equivalent to 6 /8s, 108 /16s and 239 /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: 10697 Total AfriNIC prefixes after maximum aggregation: 2678 AfriNIC Deaggregation factor: 3.99 Prefixes being announced from the AfriNIC address blocks: 13918 Unique aggregates announced from the AfriNIC address blocks: 5809 AfriNIC Region origin ASes present in the Internet Routing Table: 305 AfriNIC Prefixes per ASN: 45.63 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 169 Number of AfriNIC addresses announced to Internet: 44325120 Equivalent to 2 /8s, 164 /16s and 89 /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 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1741 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 941 500 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 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 586 77 427 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14368 41088 5391 AMAZON-02, US 22773 4298 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3117 241 1742 USDA-1, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1874 2135 871 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1441 683 721 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 1241 97 1016 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 865 1841 16 TE-AS TE-AS, EG 212238 721 53 639 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 35819 542 538 91 MOBILY-AS Etihad Etisalat Company Mobily, 5511 527 129 444 OPENTRANSIT, FR 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 7257 1961 778 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1694 241 1220 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1278 371 23 Telefonica del Peru S.A.A., PE 11664 1253 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 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 1300 444 95 RAYA-AS, EG 24863 1019 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 573 82 3 KENET-AS, KE 36935 487 122 131 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 14368 41088 5391 AMAZON-02, US 9808 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7257 1961 778 UNINET, MX 22773 4298 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3117 241 1742 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1950 4046 511 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 13647 13528 CHINAMOBILE-CN China Mobile Communications Grou 8151 7257 6479 UNINET, MX 22773 4298 3934 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1663 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1950 1439 CELLCO-PART, US 36352 2573 1405 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 /11:50 /12:162 /13:214 /14:587 /15:1095 /16:7695 /17:3408 /18:4120 /19:7661 /20:12622 /21:15839 /22:28423 /23:28744 /24:167654 /25:64 /26:82 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3933 7257 UNINET, MX 22773 2649 4298 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2413 14368 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1441 BRIGHTSPEED, US 36352 1039 2573 AS-COLOCROSSING, US 10620 1004 1694 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 924 1253 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) ---------------------------------------------- 1:28 2:310 3:942 4:5 5:594 6:157 7:5 8:616 9:5 11:171 12:875 13:499 14:171 15:345 16:271 17:3 18:899 20:197 21:4 22:188 23:2698 24:596 27:56 29:19 31:469 32:13 34:10 35:184 36:3188 37:559 38:2571 39:748 40:94 41:1039 42:145 43:201 44:26 45:4199 46:943 47:147 49:22 50:474 51:391 52:1459 54:346 55:1087 56:11 57:28 58:17 59:33 60:91 61:61 62:534 63:739 64:1963 65:1010 66:1968 67:1051 68:510 69:1206 70:442 71:171 72:748 74:986 75:309 76:236 77:376 78:306 79:267 80:318 81:383 82:757 83:203 84:349 85:568 86:246 87:190 88:283 89:687 90:105 91:903 92:665 93:422 94:861 95:418 96:273 97:50 98:409 99:244 100:22 101:18 102:464 103:1034 104:1600 105:174 106:61 107:1701 108:532 109:345 110:92 111:2505 112:1099 113:32 114:39 115:63 116:57 117:1447 118:78 119:71 120:1649 121:30 122:62 123:175 124:87 125:21 128:551 129:398 130:650 131:1054 132:577 133:221 134:499 135:124 136:674 137:500 138:1005 139:432 140:736 141:363 142:1182 143:876 144:413 145:143 146:661 147:476 148:916 149:735 150:210 151:780 152:702 153:175 154:1114 155:969 156:1154 157:438 158:592 159:749 160:614 161:704 162:990 163:432 164:757 165:633 166:802 167:674 168:1515 169:153 170:1863 171:101 172:1296 173:792 174:289 175:99 176:403 177:881 178:641 179:866 180:36 181:2423 182:29 183:1489 184:454 185:3089 186:3237 187:1680 188:763 189:1854 190:6268 191:535 192:5067 193:1704 194:1072 195:922 196:760 197:1131 198:2700 199:5229 200:4362 201:3673 202:991 203:785 204:2153 205:1826 206:1514 207:1735 208:1557 209:1931 210:338 211:507 212:973 213:705 214:947 215:40 216:2515 217:474 218:658 219:18 220:87 221:496 222:24 223:1505 End of report