IPv4 R&E Routing Table Report 20:15 GMT Tue 21 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: 278420 Prefixes after maximum aggregation (per Origin AS): 117932 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142703 Number of IPv4 prefixes with a valid ROA: 129414 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148796 Total ASes present in the Internet Routing Table: 20263 Prefixes per ASN: 13.74 Origin-only ASes present in the Internet Routing Table: 17478 Origin ASes announcing only one prefix: 7882 Transit ASes present in the Internet Routing Table: 2785 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: 282 Number of instances of unregistered ASNs: 311 Number of 32-bit ASNs allocated by the RIRs: 47760 Number of 32-bit ASNs visible in the Routing Table: 8038 Prefixes from 32-bit ASNs in the Routing Table: 32803 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: 95 Number of addresses announced to Internet: 1628456357 Equivalent to 97 /8s, 16 /16s and 69 /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: 86747 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38776 Total APNIC prefixes after maximum aggregation: 7900 APNIC Deaggregation factor: 4.91 Prefixes being announced from the APNIC address blocks: 37523 Unique aggregates announced from the APNIC address blocks: 8318 APNIC Region origin ASes present in the Internet Routing Table: 1137 APNIC Prefixes per ASN: 33.00 APNIC Region origin ASes announcing only one prefix: 439 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: 522 Number of APNIC addresses announced to Internet: 174984556 Equivalent to 10 /8s, 110 /16s and 13 /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: 127463 Total ARIN prefixes after maximum aggregation: 65746 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125332 Unique aggregates announced from the ARIN address blocks: 68839 ARIN Region origin ASes present in the Internet Routing Table: 9205 ARIN Prefixes per ASN: 13.62 ARIN Region origin ASes announcing only one prefix: 3849 ARIN Region transit ASes present in the Internet Routing Table: 844 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: 2189 Number of ARIN addresses announced to Internet: 1020870633 Equivalent to 60 /8s, 217 /16s and 63 /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: 44924 Total RIPE prefixes after maximum aggregation: 25056 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47253 Unique aggregates announced from the RIPE address blocks: 35713 RIPE Region origin ASes present in the Internet Routing Table: 4432 RIPE Prefixes per ASN: 10.66 RIPE Region origin ASes announcing only one prefix: 1918 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 1826 Number of RIPE addresses announced to Internet: 279620176 Equivalent to 16 /8s, 170 /16s and 170 /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: 56194 Total LACNIC prefixes after maximum aggregation: 16349 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54143 Unique aggregates announced from the LACNIC address blocks: 23984 LACNIC Region origin ASes present in the Internet Routing Table: 4367 LACNIC Prefixes per ASN: 12.40 LACNIC Region origin ASes announcing only one prefix: 1565 LACNIC Region transit ASes present in the Internet Routing Table: 856 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: 3329 Number of LACNIC addresses announced to Internet: 108346368 Equivalent to 6 /8s, 117 /16s and 60 /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: 10781 Total AfriNIC prefixes after maximum aggregation: 2649 AfriNIC Deaggregation factor: 4.07 Prefixes being announced from the AfriNIC address blocks: 14074 Unique aggregates announced from the AfriNIC address blocks: 5759 AfriNIC Region origin ASes present in the Internet Routing Table: 302 AfriNIC Prefixes per ASN: 46.60 AfriNIC Region origin ASes announcing only one prefix: 111 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: 172 Number of AfriNIC addresses announced to Internet: 44529664 Equivalent to 2 /8s, 167 /16s and 120 /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 13648 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 14301 41082 5365 AMAZON-02, US 22773 4302 3070 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3132 242 1754 USDA-1, US 36352 2574 210 1166 AS-COLOCROSSING, US 6167 1954 4050 513 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1875 2133 875 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1443 697 721 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 1243 97 1013 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 866 1841 16 TE-AS TE-AS, EG 212238 680 47 599 CDNEXT, GB 34984 620 106 477 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 561 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 7189 1972 779 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1672 240 1208 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1257 278 31 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 897 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 1369 489 85 RAYA-AS, EG 24863 1024 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 679 151 177 Vodafone-, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 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 14301 41082 5365 AMAZON-02, US 9808 13648 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7189 1972 779 UNINET, MX 22773 4302 3070 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3132 242 1754 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2574 210 1166 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 6167 1954 4050 513 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 13648 13529 CHINAMOBILE-CN China Mobile Communications Grou 8151 7189 6410 UNINET, MX 22773 4302 3937 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 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 1954 1441 CELLCO-PART, US 36352 2574 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 /11:50 /12:161 /13:214 /14:587 /15:1096 /16:7680 /17:3410 /18:4146 /19:7662 /20:12586 /21:15934 /22:28405 /23:28680 /24:167513 /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 3808 7189 UNINET, MX 22773 2649 4302 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2409 14301 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1443 BRIGHTSPEED, US 36352 1039 2574 AS-COLOCROSSING, US 10620 983 1672 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 936 1257 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) ---------------------------------------------- 1:27 2:278 3:935 4:5 5:601 6:157 7:5 8:613 9:5 11:171 12:880 13:477 14:171 15:344 16:273 17:3 18:899 20:198 21:4 22:188 23:2767 24:596 27:56 29:19 31:447 32:13 34:11 35:187 36:3195 37:545 38:2570 39:748 40:94 41:1021 42:145 43:200 44:26 45:4201 46:913 47:147 49:22 50:474 51:391 52:1458 54:346 55:1103 56:11 57:28 58:17 59:33 60:91 61:61 62:538 63:737 64:1959 65:1019 66:1968 67:1032 68:498 69:1204 70:442 71:170 72:735 74:984 75:308 76:235 77:379 78:301 79:263 80:314 81:389 82:748 83:197 84:338 85:587 86:247 87:178 88:282 89:678 90:105 91:893 92:659 93:421 94:853 95:418 96:260 97:50 98:406 99:241 100:23 101:18 102:470 103:1041 104:1592 105:188 106:61 107:1702 108:529 109:351 110:92 111:2505 112:1099 113:31 114:39 115:64 116:57 117:1446 118:81 119:70 120:1649 121:30 122:62 123:175 124:84 125:24 128:553 129:400 130:664 131:1054 132:578 133:219 134:497 135:124 136:674 137:500 138:1005 139:432 140:732 141:365 142:1178 143:895 144:423 145:144 146:653 147:476 148:983 149:723 150:210 151:785 152:697 153:176 154:1182 155:987 156:1173 157:436 158:629 159:741 160:611 161:705 162:996 163:431 164:759 165:634 166:801 167:679 168:1500 169:153 170:1855 171:101 172:1296 173:797 174:289 175:106 176:411 177:913 178:629 179:872 180:35 181:2414 182:25 183:1489 184:455 185:3058 186:3227 187:1631 188:777 189:1848 190:6209 191:532 192:5072 193:1699 194:1074 195:924 196:718 197:1108 198:2698 199:5231 200:4349 201:3668 202:995 203:785 204:2156 205:1820 206:1518 207:1735 208:1552 209:1922 210:344 211:509 212:968 213:702 214:948 215:40 216:2511 217:465 218:658 219:18 220:87 221:495 222:24 223:1505 End of report