IPv4 R&E Routing Table Report 20:15 GMT Thu 30 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: 281868 Prefixes after maximum aggregation (per Origin AS): 119690 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 144242 Number of IPv4 prefixes with a valid ROA: 132893 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148778 Total ASes present in the Internet Routing Table: 20520 Prefixes per ASN: 13.74 Origin-only ASes present in the Internet Routing Table: 17683 Origin ASes announcing only one prefix: 7956 Transit ASes present in the Internet Routing Table: 2837 Transit-only ASes present in the Internet Routing Table: 715 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: 279 Number of instances of unregistered ASNs: 308 Number of 32-bit ASNs allocated by the RIRs: 47832 Number of 32-bit ASNs visible in the Routing Table: 8159 Prefixes from 32-bit ASNs in the Routing Table: 33639 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: 89 Number of addresses announced to Internet: 1622316445 Equivalent to 96 /8s, 178 /16s and 149 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 89202 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39127 Total APNIC prefixes after maximum aggregation: 8333 APNIC Deaggregation factor: 4.70 Prefixes being announced from the APNIC address blocks: 37763 Unique aggregates announced from the APNIC address blocks: 8262 APNIC Region origin ASes present in the Internet Routing Table: 1161 APNIC Prefixes per ASN: 32.53 APNIC Region origin ASes announcing only one prefix: 448 APNIC Region transit ASes present in the Internet Routing Table: 198 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 532 Number of APNIC addresses announced to Internet: 164832100 Equivalent to 9 /8s, 211 /16s and 35 /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: 128201 Total ARIN prefixes after maximum aggregation: 65912 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 125960 Unique aggregates announced from the ARIN address blocks: 69383 ARIN Region origin ASes present in the Internet Routing Table: 9222 ARIN Prefixes per ASN: 13.66 ARIN Region origin ASes announcing only one prefix: 3870 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2202 Number of ARIN addresses announced to Internet: 1022096873 Equivalent to 60 /8s, 235 /16s and 245 /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: 47284 Total RIPE prefixes after maximum aggregation: 26351 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 49702 Unique aggregates announced from the RIPE address blocks: 37416 RIPE Region origin ASes present in the Internet Routing Table: 4641 RIPE Prefixes per ASN: 10.71 RIPE Region origin ASes announcing only one prefix: 1976 RIPE Region transit ASes present in the Internet Routing Table: 730 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1917 Number of RIPE addresses announced to Internet: 281435472 Equivalent to 16 /8s, 198 /16s and 93 /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: 56399 Total LACNIC prefixes after maximum aggregation: 16467 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54307 Unique aggregates announced from the LACNIC address blocks: 24040 LACNIC Region origin ASes present in the Internet Routing Table: 4362 LACNIC Prefixes per ASN: 12.45 LACNIC Region origin ASes announcing only one prefix: 1553 LACNIC Region transit ASes present in the Internet Routing Table: 850 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3338 Number of LACNIC addresses announced to Internet: 108198656 Equivalent to 6 /8s, 114 /16s and 251 /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: 10578 Total AfriNIC prefixes after maximum aggregation: 2399 AfriNIC Deaggregation factor: 4.41 Prefixes being announced from the AfriNIC address blocks: 14047 Unique aggregates announced from the AfriNIC address blocks: 5053 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 47.62 AfriNIC Region origin ASes announcing only one prefix: 109 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: 170 Number of AfriNIC addresses announced to Internet: 45649664 Equivalent to 2 /8s, 184 /16s and 143 /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 13190 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3187 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1731 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1716 192 50 CMNET-HUNAN-AP China Mobile communication 24444 960 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 871 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 701 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 660 247 353 CMNET-JIANGXI-AP China Mobile communicati 2907 611 2169 463 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 14428 41103 5387 AMAZON-02, US 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3140 243 1762 USDA-1, US 36352 2571 210 1169 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1863 2102 871 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1444 701 733 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 1226 96 1004 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 8452 892 1841 16 TE-AS TE-AS, EG 39891 874 55 22 ALJAWWALSTC-AS, SA 212238 657 46 577 CDNEXT, GB 34984 581 89 461 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 35819 531 529 95 MOBILY-AS Etihad Etisalat Company Mobily, 5511 528 129 445 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 7105 1930 782 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1665 235 1202 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1297 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1278 371 23 Telefonica del Peru S.A.A., PE 26615 1024 2486 56 TIM SA, BR 18881 906 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 653 41 196 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 1401 522 26 RAYA-AS, EG 24863 1040 389 22 LINKdotNET-AS, EG 37069 945 1096 13 MOBINIL, EG 36992 598 1088 299 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 82 3 KENET-AS, KE 36935 486 515 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 14428 41103 5387 AMAZON-02, US 9808 13190 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7105 1930 782 UNINET, MX 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 56046 3187 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3140 243 1762 USDA-1, US 36352 2571 210 1169 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1958 4060 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 13190 13071 CHINAMOBILE-CN China Mobile Communications Grou 8151 7105 6323 UNINET, MX 22773 4631 4229 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3187 2994 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1716 1666 CMNET-HUNAN-AP China Mobile communications corp 56041 1731 1653 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1958 1454 CELLCO-PART, US 36352 2571 1402 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 /12:158 /13:215 /14:586 /15:1105 /16:7584 /17:3449 /18:4126 /19:7700 /20:12664 /21:15942 /22:28650 /23:29072 /24:170272 /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 3909 7105 UNINET, MX 22773 2985 4631 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2427 14428 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1444 BRIGHTSPEED, US 36352 1035 2571 AS-COLOCROSSING, US 10620 996 1665 Telmex Colombia S.A., CO 11664 972 1297 Techtel LMDS Comunicaciones Interactivas S.A., AR 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 884 1908 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 2:353 3:961 4:5 5:724 6:158 7:5 8:609 9:5 11:171 12:875 13:497 14:173 15:343 16:278 17:3 18:902 20:199 21:4 22:188 23:2664 24:595 27:57 29:19 31:477 32:13 34:10 35:186 36:3229 37:552 38:2579 39:752 40:91 41:1007 42:146 43:209 44:26 45:4323 46:962 47:148 49:21 50:473 51:391 52:1455 54:350 55:1102 56:11 57:32 58:18 59:34 60:93 61:61 62:563 63:741 64:1968 65:1041 66:2250 67:1118 68:490 69:1197 70:441 71:171 72:738 74:1001 75:305 76:235 77:438 78:363 79:284 80:351 81:441 82:777 83:206 84:341 85:647 86:244 87:253 88:288 89:693 90:105 91:920 92:685 93:438 94:906 95:493 96:265 97:49 98:406 99:241 100:22 101:20 102:432 103:1091 104:1587 105:174 106:67 107:1693 108:523 109:368 110:92 111:2509 112:1146 113:36 114:39 115:65 116:52 117:1400 118:85 119:71 120:1690 121:32 122:62 123:180 124:85 125:21 128:558 129:374 130:673 131:1072 132:570 133:221 134:508 135:122 136:678 137:488 138:1009 139:442 140:740 141:378 142:1190 143:895 144:429 145:148 146:657 147:477 148:981 149:722 150:212 151:788 152:747 153:180 154:1260 155:958 156:1201 157:445 158:634 159:750 160:612 161:690 162:1004 163:438 164:762 165:620 166:793 167:681 168:1476 169:159 170:1882 171:103 172:1313 173:794 174:286 175:111 176:420 177:894 178:654 179:890 180:35 181:2432 182:29 183:1508 184:438 185:3420 186:3284 187:1633 188:793 189:1821 190:6341 191:558 192:5079 193:1746 194:1130 195:969 196:709 197:1096 198:2704 199:5232 200:4439 201:3679 202:1004 203:795 204:2158 205:1804 206:1508 207:1722 208:1541 209:1920 210:366 211:502 212:1020 213:746 214:953 215:40 216:2522 217:488 218:658 219:18 220:87 221:484 222:24 223:1542 End of report