IPv4 R&E Routing Table Report 20:15 GMT Mon 03 Nov, 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: 280186 Prefixes after maximum aggregation (per Origin AS): 118529 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 145385 Number of IPv4 prefixes with a valid ROA: 134186 Number of IPv4 prefixes with an invalid ROA: 198 Number of IPv4 prefixes with no ROA: 145802 Total ASes present in the Internet Routing Table: 20619 Prefixes per ASN: 13.59 Origin-only ASes present in the Internet Routing Table: 17790 Origin ASes announcing only one prefix: 7985 Transit ASes present in the Internet Routing Table: 2829 Transit-only ASes present in the Internet Routing Table: 718 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: 276 Number of instances of unregistered ASNs: 305 Number of 32-bit ASNs allocated by the RIRs: 47880 Number of 32-bit ASNs visible in the Routing Table: 8212 Prefixes from 32-bit ASNs in the Routing Table: 33976 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: 1623314589 Equivalent to 96 /8s, 193 /16s and 208 /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: 89769 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39765 Total APNIC prefixes after maximum aggregation: 8422 APNIC Deaggregation factor: 4.72 Prefixes being announced from the APNIC address blocks: 38413 Unique aggregates announced from the APNIC address blocks: 8350 APNIC Region origin ASes present in the Internet Routing Table: 1167 APNIC Prefixes per ASN: 32.92 APNIC Region origin ASes announcing only one prefix: 449 APNIC Region transit ASes present in the Internet Routing Table: 188 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: 543 Number of APNIC addresses announced to Internet: 165687908 Equivalent to 9 /8s, 224 /16s and 50 /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: 124930 Total ARIN prefixes after maximum aggregation: 64138 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 122760 Unique aggregates announced from the ARIN address blocks: 69775 ARIN Region origin ASes present in the Internet Routing Table: 9216 ARIN Prefixes per ASN: 13.32 ARIN Region origin ASes announcing only one prefix: 3871 ARIN Region transit ASes present in the Internet Routing Table: 845 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: 2206 Number of ARIN addresses announced to Internet: 1021975017 Equivalent to 60 /8s, 234 /16s and 25 /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: 48031 Total RIPE prefixes after maximum aggregation: 26838 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 50349 Unique aggregates announced from the RIPE address blocks: 37943 RIPE Region origin ASes present in the Internet Routing Table: 4716 RIPE Prefixes per ASN: 10.68 RIPE Region origin ASes announcing only one prefix: 1994 RIPE Region transit ASes present in the Internet Routing Table: 731 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1937 Number of RIPE addresses announced to Internet: 281321552 Equivalent to 16 /8s, 196 /16s and 160 /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: 56667 Total LACNIC prefixes after maximum aggregation: 16517 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54561 Unique aggregates announced from the LACNIC address blocks: 24068 LACNIC Region origin ASes present in the Internet Routing Table: 4387 LACNIC Prefixes per ASN: 12.44 LACNIC Region origin ASes announcing only one prefix: 1562 LACNIC Region transit ASes present in the Internet Routing Table: 857 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3359 Number of LACNIC addresses announced to Internet: 108295936 Equivalent to 6 /8s, 116 /16s and 119 /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: 10517 Total AfriNIC prefixes after maximum aggregation: 2391 AfriNIC Deaggregation factor: 4.40 Prefixes being announced from the AfriNIC address blocks: 14014 Unique aggregates announced from the AfriNIC address blocks: 5161 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 47.67 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 77 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: 167 Number of AfriNIC addresses announced to Internet: 45931264 Equivalent to 2 /8s, 188 /16s and 219 /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 13191 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 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 963 500 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 4780 598 272 207 SEEDNET Digital United Inc., TW 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 14454 41089 5391 AMAZON-02, US 22773 4630 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1867 2122 874 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1446 702 723 BRIGHTSPEED, US 20057 1435 1001 112 ATT-MOBILITY-LLC-AS20057, 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 1222 95 1000 AKAMAI-ASN1, NL 3215 928 4895 287 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 852 1841 16 TE-AS TE-AS, EG 212238 658 46 577 CDNEXT, GB 8376 573 53 24 Jordan Data Communications, JO 34984 569 90 460 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 5511 529 129 446 OPENTRANSIT, FR 35819 430 427 106 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 7319 1974 779 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1666 235 1203 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1296 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 23 Telefonica del Peru S.A.A., PE 26615 1023 2486 56 TIM SA, BR 18881 908 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 661 41 200 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 1408 522 26 RAYA-AS, EG 24863 1014 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 597 1088 298 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 36935 486 515 10 Vodafone-, EG 29571 481 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 14454 41089 5391 AMAZON-02, US 9808 13191 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7319 1974 779 UNINET, MX 22773 4630 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 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, 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 13191 13072 CHINAMOBILE-CN China Mobile Communications Grou 8151 7319 6540 UNINET, MX 22773 4630 4228 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 1715 1665 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: 327924 EXCELSIMO-NETWORKS, NG 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 /11:52 /12:156 /13:215 /14:586 /15:1107 /16:7614 /17:3421 /18:4165 /19:7698 /20:12572 /21:16005 /22:28799 /23:28938 /24:168563 /25:64 /26:82 /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 3972 7319 UNINET, MX 22773 2984 4630 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2441 14454 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 997 1666 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 2:356 3:965 4:5 5:715 6:159 7:5 8:622 9:5 11:171 12:882 13:491 14:173 15:344 16:278 17:3 18:904 20:199 21:4 22:188 23:2667 24:594 27:57 29:19 31:475 32:13 34:10 35:186 36:3228 37:600 38:2592 39:757 40:91 41:1005 42:146 43:199 44:26 45:4395 46:982 47:147 49:22 50:475 51:390 52:1456 54:350 55:1093 56:11 57:31 58:17 59:34 60:145 61:119 62:568 63:731 64:1964 65:1022 66:2261 67:1118 68:494 69:1195 70:440 71:171 72:736 74:1001 75:305 76:234 77:449 78:376 79:282 80:367 81:468 82:781 83:202 84:342 85:670 86:243 87:255 88:289 89:705 90:106 91:948 92:701 93:456 94:914 95:485 96:315 97:48 98:405 99:254 100:23 101:21 102:445 103:1090 104:1587 105:174 106:88 107:1692 108:521 109:393 110:92 111:2508 112:1151 113:32 114:39 115:63 116:55 117:1399 118:81 119:86 120:1689 121:31 122:93 123:192 124:178 125:23 128:561 129:374 130:673 131:1081 132:571 133:221 134:501 135:123 136:674 137:488 138:1005 139:447 140:733 141:372 142:1183 143:904 144:424 145:148 146:655 147:481 148:1000 149:725 150:208 151:802 152:748 153:179 154:1327 155:957 156:1223 157:440 158:618 159:764 160:614 161:708 162:1000 163:439 164:774 165:605 166:608 167:679 168:1466 169:154 170:1863 171:103 172:1299 173:815 174:287 175:126 176:435 177:898 178:671 179:889 180:34 181:2444 182:29 183:1510 184:446 185:3531 186:3270 187:1666 188:826 189:1851 190:6371 191:557 192:5098 193:1769 194:1171 195:956 196:715 197:1093 198:2702 199:2497 200:4311 201:3640 202:1009 203:801 204:2161 205:1807 206:1491 207:1720 208:1525 209:1910 210:564 211:512 212:987 213:757 214:947 215:40 216:2506 217:503 218:716 219:18 220:128 221:484 222:27 223:1540 End of report