IPv4 R&E Routing Table Report 20:15 GMT Tue 04 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: 284842 Prefixes after maximum aggregation (per Origin AS): 118578 Deaggregation factor: 2.40 Unique aggregates announced (without unneeded subnets): 145257 Number of IPv4 prefixes with a valid ROA: 138465 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 146180 Total ASes present in the Internet Routing Table: 20607 Prefixes per ASN: 13.82 Origin-only ASes present in the Internet Routing Table: 17778 Origin ASes announcing only one prefix: 7958 Transit ASes present in the Internet Routing Table: 2829 Transit-only ASes present in the Internet Routing Table: 717 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: 47882 Number of 32-bit ASNs visible in the Routing Table: 8198 Prefixes from 32-bit ASNs in the Routing Table: 33992 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: 86 Number of addresses announced to Internet: 1607228573 Equivalent to 95 /8s, 204 /16s and 92 /24s Percentage of available address space announced: 43.4 Percentage of allocated address space announced: 43.4 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: 93402 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39871 Total APNIC prefixes after maximum aggregation: 8442 APNIC Deaggregation factor: 4.72 Prefixes being announced from the APNIC address blocks: 38462 Unique aggregates announced from the APNIC address blocks: 8376 APNIC Region origin ASes present in the Internet Routing Table: 1149 APNIC Prefixes per ASN: 33.47 APNIC Region origin ASes announcing only one prefix: 440 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 527 Number of APNIC addresses announced to Internet: 165733220 Equivalent to 9 /8s, 224 /16s and 227 /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: 125180 Total ARIN prefixes after maximum aggregation: 64437 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 122883 Unique aggregates announced from the ARIN address blocks: 69847 ARIN Region origin ASes present in the Internet Routing Table: 9223 ARIN Prefixes per ASN: 13.32 ARIN Region origin ASes announcing only one prefix: 3870 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 2210 Number of ARIN addresses announced to Internet: 1007537641 Equivalent to 60 /8s, 13 /16s and 205 /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: 52230 Total RIPE prefixes after maximum aggregation: 26498 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 54771 Unique aggregates announced from the RIPE address blocks: 37594 RIPE Region origin ASes present in the Internet Routing Table: 4709 RIPE Prefixes per ASN: 11.63 RIPE Region origin ASes announcing only one prefix: 1984 RIPE Region transit ASes present in the Internet Routing Table: 735 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: 1936 Number of RIPE addresses announced to Internet: 279492944 Equivalent to 16 /8s, 168 /16s and 185 /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: 56625 Total LACNIC prefixes after maximum aggregation: 16507 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54495 Unique aggregates announced from the LACNIC address blocks: 24083 LACNIC Region origin ASes present in the Internet Routing Table: 4368 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1539 LACNIC Region transit ASes present in the Internet Routing Table: 854 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: 3342 Number of LACNIC addresses announced to Internet: 108215296 Equivalent to 6 /8s, 115 /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: 10660 Total AfriNIC prefixes after maximum aggregation: 2471 AfriNIC Deaggregation factor: 4.31 Prefixes being announced from the AfriNIC address blocks: 14145 Unique aggregates announced from the AfriNIC address blocks: 5272 AfriNIC Region origin ASes present in the Internet Routing Table: 320 AfriNIC Prefixes per ASN: 44.20 AfriNIC Region origin ASes announcing only one prefix: 125 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: 183 Number of AfriNIC addresses announced to Internet: 46147328 Equivalent to 2 /8s, 192 /16s and 39 /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 3182 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 874 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 724 497 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 597 272 207 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 14264 37243 5372 AMAZON-02, US 22773 4630 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 36352 2574 210 1169 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1875 2122 875 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1445 701 725 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 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 1229 96 1007 AKAMAI-ASN1, NL 25019 1135 1335 139 SAUDINETSTC-AS, SA 3215 894 4819 295 France Telecom - Orange, FR 8452 817 1841 16 TE-AS TE-AS, EG 212238 660 46 579 CDNEXT, GB 8376 574 53 24 Jordan Data Communications, JO 34984 568 90 459 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 5511 530 129 447 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 7325 1974 780 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 1306 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1277 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 658 41 197 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 1435 522 26 RAYA-AS, EG 24863 1019 389 22 LINKdotNET-AS, EG 37069 981 1096 13 MOBINIL, EG 36992 595 1084 298 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 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 14264 37243 5372 AMAZON-02, US 9808 13190 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7325 1974 780 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4630 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 56046 3182 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2574 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 7325 6545 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4630 4228 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3182 2989 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 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 /12:155 /13:212 /14:582 /15:1071 /16:7491 /17:3437 /18:4164 /19:7736 /20:12972 /21:16045 /22:28844 /23:29468 /24:172319 /25:64 /26:82 /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 3979 7325 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 2984 4630 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2441 14264 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1057 1445 BRIGHTSPEED, US 36352 1036 2574 AS-COLOCROSSING, US 10620 997 1666 Telmex Colombia S.A., CO 11664 981 1306 Techtel LMDS Comunicaciones Interactivas S.A., AR 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:32 2:541 3:963 4:5 5:1252 6:160 7:5 8:620 9:5 11:171 12:882 13:488 14:173 15:345 16:278 17:3 18:901 20:199 21:4 22:188 23:2675 24:596 27:57 29:19 31:466 32:13 34:10 35:186 36:3231 37:700 38:2605 39:757 40:91 41:1020 42:147 43:202 44:26 45:4398 46:965 47:147 49:22 50:485 51:522 52:1456 54:350 55:1093 56:11 57:32 58:17 59:34 60:147 61:115 62:617 63:737 64:2101 65:1021 66:2328 67:1116 68:497 69:1206 70:449 71:172 72:737 74:1008 75:302 76:234 77:514 78:624 79:283 80:352 81:512 82:803 83:209 84:361 85:665 86:244 87:256 88:287 89:692 90:105 91:950 92:688 93:966 94:1063 95:1352 96:316 97:52 98:405 99:254 100:22 101:23 102:452 103:1076 104:1664 105:176 106:88 107:1690 108:522 109:392 110:92 111:2509 112:1154 113:35 114:39 115:63 116:52 117:1477 118:85 119:88 120:1691 121:30 122:93 123:193 124:179 125:23 128:566 129:374 130:669 131:1080 132:562 133:221 134:504 135:123 136:672 137:490 138:1008 139:448 140:727 141:375 142:1201 143:910 144:418 145:169 146:658 147:482 148:999 149:726 150:210 151:867 152:765 153:179 154:1361 155:1024 156:1216 157:439 158:613 159:767 160:612 161:711 162:1006 163:442 164:763 165:622 166:607 167:680 168:1483 169:162 170:1854 171:103 172:1303 173:815 174:285 175:127 176:564 177:894 178:615 179:889 180:34 181:2409 182:29 183:1508 184:451 185:3508 186:3257 187:1671 188:905 189:1844 190:6379 191:537 192:5104 193:1772 194:1163 195:959 196:727 197:1098 198:2665 199:2500 200:4297 201:3626 202:1011 203:808 204:2170 205:1807 206:1508 207:1726 208:1592 209:1900 210:564 211:510 212:1022 213:758 214:950 215:44 216:2521 217:515 218:716 219:18 220:128 221:485 222:27 223:1540 End of report