IPv4 R&E Routing Table Report 20:15 GMT Fri 24 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: 279552 Prefixes after maximum aggregation (per Origin AS): 118410 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 143045 Number of IPv4 prefixes with a valid ROA: 130487 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148868 Total ASes present in the Internet Routing Table: 20262 Prefixes per ASN: 13.80 Origin-only ASes present in the Internet Routing Table: 17479 Origin ASes announcing only one prefix: 7876 Transit ASes present in the Internet Routing Table: 2783 Transit-only ASes present in the Internet Routing Table: 695 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: 288 Number of instances of unregistered ASNs: 317 Number of 32-bit ASNs allocated by the RIRs: 47797 Number of 32-bit ASNs visible in the Routing Table: 8039 Prefixes from 32-bit ASNs in the Routing Table: 32878 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: 96 Number of addresses announced to Internet: 1630490269 Equivalent to 97 /8s, 47 /16s and 78 /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: 87392 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38913 Total APNIC prefixes after maximum aggregation: 8241 APNIC Deaggregation factor: 4.72 Prefixes being announced from the APNIC address blocks: 37695 Unique aggregates announced from the APNIC address blocks: 8365 APNIC Region origin ASes present in the Internet Routing Table: 1152 APNIC Prefixes per ASN: 32.72 APNIC Region origin ASes announcing only one prefix: 452 APNIC Region transit ASes present in the Internet Routing Table: 190 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: 533 Number of APNIC addresses announced to Internet: 174988388 Equivalent to 10 /8s, 110 /16s and 28 /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: 127551 Total ARIN prefixes after maximum aggregation: 65865 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125280 Unique aggregates announced from the ARIN address blocks: 68997 ARIN Region origin ASes present in the Internet Routing Table: 9208 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 3852 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: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2190 Number of ARIN addresses announced to Internet: 1020540649 Equivalent to 60 /8s, 212 /16s and 54 /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: 45195 Total RIPE prefixes after maximum aggregation: 25163 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 47604 Unique aggregates announced from the RIPE address blocks: 35962 RIPE Region origin ASes present in the Internet Routing Table: 4438 RIPE Prefixes per ASN: 10.73 RIPE Region origin ASes announcing only one prefix: 1905 RIPE Region transit ASes present in the Internet Routing Table: 703 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: 1833 Number of RIPE addresses announced to Internet: 279927376 Equivalent to 16 /8s, 175 /16s and 90 /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: 56968 Total LACNIC prefixes after maximum aggregation: 16354 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54911 Unique aggregates announced from the LACNIC address blocks: 23987 LACNIC Region origin ASes present in the Internet Routing Table: 4348 LACNIC Prefixes per ASN: 12.63 LACNIC Region origin ASes announcing only one prefix: 1559 LACNIC Region transit ASes present in the Internet Routing Table: 850 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3316 Number of LACNIC addresses announced to Internet: 108628224 Equivalent to 6 /8s, 121 /16s and 137 /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: 10637 Total AfriNIC prefixes after maximum aggregation: 2554 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 13966 Unique aggregates announced from the AfriNIC address blocks: 5643 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 47.34 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 72 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: 46300416 Equivalent to 2 /8s, 194 /16s and 125 /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 1715 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 610 2153 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 14368 41104 5381 AMAZON-02, US 22773 4278 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3130 243 1749 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 1861 2117 869 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1446 701 722 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 1211 94 994 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 872 1841 15 TE-AS TE-AS, EG 212238 643 45 565 CDNEXT, GB 34984 576 88 457 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 556 53 25 Jordan Data Communications, JO 35819 542 538 91 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 7834 2148 769 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1670 236 1206 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 1263 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1022 2486 56 TIM SA, BR 18881 900 1127 31 TELEFONICA BRASIL S.A, BR 12252 701 164 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 1046 389 22 LINKdotNET-AS, EG 37069 949 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 29571 501 98 67 ORANGE-COTE-IVOIRE, CI 36935 491 515 10 Vodafone-, EG 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 41104 5381 AMAZON-02, US 9808 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7834 2148 769 UNINET, MX 22773 4278 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3130 243 1749 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 7834 7065 UNINET, MX 22773 4278 3911 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 1715 1665 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 /16:7684 /17:3445 /18:4160 /19:7762 /20:12652 /21:16155 /22:28476 /23:28896 /24:167921 /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 4115 7834 UNINET, MX 22773 2626 4278 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14368 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1446 BRIGHTSPEED, US 36352 1038 2573 AS-COLOCROSSING, US 10620 1000 1670 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 938 1263 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 2:274 3:948 4:5 5:614 6:157 7:5 8:611 9:5 11:171 12:882 13:485 14:171 15:344 16:278 17:3 18:900 20:198 21:4 22:188 23:2702 24:596 27:56 29:19 31:455 32:13 34:10 35:187 36:3222 37:527 38:2583 39:738 40:94 41:1019 42:145 43:198 44:27 45:4214 46:916 47:147 49:21 50:474 51:391 52:1457 54:348 55:1063 56:11 57:32 58:17 59:33 60:91 61:61 62:532 63:737 64:1952 65:1021 66:1991 67:1030 68:517 69:1209 70:444 71:171 72:741 74:993 75:309 76:236 77:371 78:301 79:264 80:320 81:430 82:764 83:203 84:339 85:595 86:242 87:179 88:282 89:678 90:105 91:903 92:658 93:415 94:855 95:420 96:261 97:50 98:406 99:244 100:22 101:20 102:427 103:1076 104:1582 105:186 106:67 107:1681 108:527 109:345 110:92 111:2509 112:1113 113:32 114:39 115:65 116:56 117:1438 118:84 119:70 120:1666 121:31 122:61 123:177 124:85 125:24 128:550 129:376 130:664 131:1048 132:592 133:221 134:503 135:122 136:667 137:487 138:991 139:439 140:737 141:366 142:1217 143:884 144:418 145:143 146:652 147:477 148:982 149:726 150:210 151:795 152:701 153:179 154:1171 155:952 156:1162 157:446 158:600 159:743 160:610 161:706 162:1002 163:433 164:760 165:625 166:801 167:681 168:1484 169:153 170:1850 171:101 172:1292 173:795 174:287 175:105 176:411 177:893 178:634 179:893 180:35 181:2420 182:29 183:1490 184:438 185:3083 186:3247 187:1745 188:762 189:1864 190:6278 191:541 192:5069 193:1708 194:1100 195:946 196:719 197:1110 198:2700 199:5229 200:4395 201:3663 202:995 203:775 204:2160 205:1807 206:1509 207:1730 208:1546 209:1928 210:344 211:511 212:985 213:731 214:954 215:40 216:2513 217:477 218:657 219:18 220:87 221:503 222:24 223:1534 End of report