IPv4 R&E Routing Table Report 20:15 GMT Fri 31 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: 281819 Prefixes after maximum aggregation (per Origin AS): 119619 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 144223 Number of IPv4 prefixes with a valid ROA: 132787 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148835 Total ASes present in the Internet Routing Table: 20524 Prefixes per ASN: 13.73 Origin-only ASes present in the Internet Routing Table: 17695 Origin ASes announcing only one prefix: 7943 Transit ASes present in the Internet Routing Table: 2829 Transit-only ASes present in the Internet Routing Table: 713 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: 47855 Number of 32-bit ASNs visible in the Routing Table: 8191 Prefixes from 32-bit ASNs in the Routing Table: 33896 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: 90 Number of addresses announced to Internet: 1621066141 Equivalent to 96 /8s, 159 /16s and 129 /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: 89452 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38637 Total APNIC prefixes after maximum aggregation: 8090 APNIC Deaggregation factor: 4.78 Prefixes being announced from the APNIC address blocks: 37469 Unique aggregates announced from the APNIC address blocks: 8026 APNIC Region origin ASes present in the Internet Routing Table: 1144 APNIC Prefixes per ASN: 32.75 APNIC Region origin ASes announcing only one prefix: 446 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 533 Number of APNIC addresses announced to Internet: 163977828 Equivalent to 9 /8s, 198 /16s and 26 /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: 128065 Total ARIN prefixes after maximum aggregation: 65862 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125935 Unique aggregates announced from the ARIN address blocks: 69406 ARIN Region origin ASes present in the Internet Routing Table: 9220 ARIN Prefixes per ASN: 13.66 ARIN Region origin ASes announcing only one prefix: 3866 ARIN Region transit ASes present in the Internet Routing Table: 846 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: 2209 Number of ARIN addresses announced to Internet: 1021905897 Equivalent to 60 /8s, 233 /16s and 11 /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: 47468 Total RIPE prefixes after maximum aggregation: 26508 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 49728 Unique aggregates announced from the RIPE address blocks: 37528 RIPE Region origin ASes present in the Internet Routing Table: 4634 RIPE Prefixes per ASN: 10.73 RIPE Region origin ASes announcing only one prefix: 1972 RIPE Region transit ASes present in the Internet Routing Table: 732 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: 1915 Number of RIPE addresses announced to Internet: 281027152 Equivalent to 16 /8s, 192 /16s and 34 /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: 56917 Total LACNIC prefixes after maximum aggregation: 16536 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54816 Unique aggregates announced from the LACNIC address blocks: 24219 LACNIC Region origin ASes present in the Internet Routing Table: 4394 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1550 LACNIC Region transit ASes present in the Internet Routing Table: 858 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: 3364 Number of LACNIC addresses announced to Internet: 108468480 Equivalent to 6 /8s, 119 /16s and 25 /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: 10453 Total AfriNIC prefixes after maximum aggregation: 2395 AfriNIC Deaggregation factor: 4.36 Prefixes being announced from the AfriNIC address blocks: 13781 Unique aggregates announced from the AfriNIC address blocks: 4955 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 46.72 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 45584640 Equivalent to 2 /8s, 183 /16s and 145 /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 13189 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1731 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1717 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 14432 41087 5382 AMAZON-02, US 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 4155 3140 243 1761 USDA-1, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1859 2116 867 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1446 701 726 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 583 90 463 TELLCOM-AS, TR 8376 568 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 7314 1974 779 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 1296 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 907 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 651 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 1005 389 22 LINKdotNET-AS, EG 37069 957 1096 13 MOBINIL, EG 36992 598 1088 299 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 36935 486 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 471 212 336 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 14432 41087 5382 AMAZON-02, US 9808 13189 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7314 1974 779 UNINET, MX 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3140 243 1761 USDA-1, US 36352 2573 210 1168 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 13189 13070 CHINAMOBILE-CN China Mobile Communications Grou 8151 7314 6535 UNINET, MX 22773 4631 4229 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3183 2990 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1717 1667 CMNET-HUNAN-AP China Mobile communications corp 56041 1731 1653 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1958 1454 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 /11:51 /12:158 /13:215 /14:585 /15:1103 /16:7581 /17:3408 /18:4090 /19:7682 /20:12613 /21:15965 /22:28758 /23:28964 /24:170353 /25:64 /26:81 /27:49 /28:18 /29:7 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3968 7314 UNINET, MX 22773 2985 4631 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2441 14432 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1446 BRIGHTSPEED, US 36352 1035 2573 AS-COLOCROSSING, US 10620 996 1665 Telmex Colombia S.A., CO 11664 971 1296 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 2:354 3:962 4:5 5:719 6:159 7:5 8:620 9:5 11:171 12:885 13:494 14:173 15:343 16:278 17:3 18:901 20:199 21:4 22:188 23:2665 24:594 27:57 29:19 31:516 32:13 34:9 35:186 36:3227 37:551 38:2575 39:752 40:91 41:1001 42:146 43:200 44:26 45:4341 46:940 47:146 49:21 50:477 51:391 52:1456 54:350 55:1107 56:11 57:31 58:17 59:34 60:91 61:61 62:562 63:736 64:1939 65:1025 66:2261 67:1120 68:493 69:1202 70:441 71:171 72:739 74:1007 75:304 76:235 77:422 78:364 79:283 80:350 81:449 82:779 83:210 84:341 85:652 86:244 87:252 88:287 89:691 90:105 91:920 92:693 93:455 94:914 95:497 96:266 97:48 98:405 99:254 100:22 101:20 102:442 103:1061 104:1589 105:174 106:67 107:1692 108:522 109:363 110:92 111:2509 112:1146 113:32 114:39 115:64 116:54 117:1399 118:82 119:87 120:1690 121:32 122:61 123:176 124:85 125:23 128:566 129:374 130:669 131:1078 132:569 133:221 134:507 135:124 136:675 137:488 138:1022 139:442 140:736 141:378 142:1164 143:900 144:424 145:148 146:655 147:476 148:990 149:720 150:210 151:789 152:746 153:181 154:1126 155:952 156:1189 157:442 158:605 159:766 160:612 161:707 162:1005 163:437 164:761 165:611 166:795 167:684 168:1476 169:157 170:1893 171:103 172:1311 173:816 174:286 175:103 176:418 177:913 178:650 179:889 180:31 181:2431 182:29 183:1508 184:452 185:3416 186:3310 187:1707 188:820 189:1849 190:6355 191:555 192:5090 193:1741 194:1133 195:962 196:710 197:1094 198:2716 199:5246 200:4444 201:3677 202:996 203:773 204:2176 205:1813 206:1507 207:1722 208:1537 209:1925 210:364 211:502 212:1009 213:761 214:950 215:40 216:2510 217:484 218:658 219:18 220:87 221:484 222:24 223:1537 End of report