IPv4 R&E Routing Table Report 20:15 GMT Sun 10 Aug, 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: 280691 Prefixes after maximum aggregation (per Origin AS): 120313 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143784 Number of IPv4 prefixes with a valid ROA: 132137 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148512 Total ASes present in the Internet Routing Table: 20694 Prefixes per ASN: 13.56 Origin-only ASes present in the Internet Routing Table: 17794 Origin ASes announcing only one prefix: 7927 Transit ASes present in the Internet Routing Table: 2900 Transit-only ASes present in the Internet Routing Table: 743 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 335 Number of instances of unregistered ASNs: 364 Number of 32-bit ASNs allocated by the RIRs: 47114 Number of 32-bit ASNs visible in the Routing Table: 8172 Prefixes from 32-bit ASNs in the Routing Table: 33372 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 100 Number of addresses announced to Internet: 1642327301 Equivalent to 97 /8s, 227 /16s and 237 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89269 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36562 Total APNIC prefixes after maximum aggregation: 7788 APNIC Deaggregation factor: 4.69 Prefixes being announced from the APNIC address blocks: 35453 Unique aggregates announced from the APNIC address blocks: 8433 APNIC Region origin ASes present in the Internet Routing Table: 1215 APNIC Prefixes per ASN: 29.18 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 200 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 573 Number of APNIC addresses announced to Internet: 174903660 Equivalent to 10 /8s, 108 /16s and 209 /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: 126933 Total ARIN prefixes after maximum aggregation: 66721 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124820 Unique aggregates announced from the ARIN address blocks: 68534 ARIN Region origin ASes present in the Internet Routing Table: 9286 ARIN Prefixes per ASN: 13.44 ARIN Region origin ASes announcing only one prefix: 3854 ARIN Region transit ASes present in the Internet Routing Table: 883 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2179 Number of ARIN addresses announced to Internet: 1025354249 Equivalent to 61 /8s, 29 /16s and 170 /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: 49419 Total RIPE prefixes after maximum aggregation: 26920 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51572 Unique aggregates announced from the RIPE address blocks: 37958 RIPE Region origin ASes present in the Internet Routing Table: 4712 RIPE Prefixes per ASN: 10.94 RIPE Region origin ASes announcing only one prefix: 1963 RIPE Region transit ASes present in the Internet Routing Table: 721 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1962 Number of RIPE addresses announced to Internet: 283813968 Equivalent to 16 /8s, 234 /16s and 168 /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: 56291 Total LACNIC prefixes after maximum aggregation: 16184 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54511 Unique aggregates announced from the LACNIC address blocks: 24268 LACNIC Region origin ASes present in the Internet Routing Table: 4316 LACNIC Prefixes per ASN: 12.63 LACNIC Region origin ASes announcing only one prefix: 1534 LACNIC Region transit ASes present in the Internet Routing Table: 867 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: 3301 Number of LACNIC addresses announced to Internet: 109046848 Equivalent to 6 /8s, 127 /16s and 236 /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: 11151 Total AfriNIC prefixes after maximum aggregation: 2445 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 14235 Unique aggregates announced from the AfriNIC address blocks: 4497 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 48.58 AfriNIC Region origin ASes announcing only one prefix: 98 AfriNIC Region transit ASes present in the Internet Routing Table: 86 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 157 Number of AfriNIC addresses announced to Internet: 49096704 Equivalent to 2 /8s, 237 /16s and 40 /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 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1679 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1662 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 803 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 606 2153 461 SINET-AS Research Organization of Informa 132525 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13785 41095 5310 AMAZON-02, US 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2903 227 1728 USDA-1, US 36352 2553 209 1135 AS-COLOCROSSING, US 367 2446 2965 1143 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1647 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1582 22816 1181 ATT-INTERNET4, 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 1936 130 50 ALJAWWALSTC-AS, SA 20940 1213 95 988 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 670 48 594 CDNEXT, GB 34984 664 100 513 TELLCOM-AS, TR 8452 600 1841 16 TE-AS TE-AS, EG 8376 583 53 23 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 35819 562 567 61 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 7395 1996 878 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1653 238 1201 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1183 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 887 1127 31 TELEFONICA BRASIL S.A, BR 11664 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 727 124 69 Alestra, S. de R.L. de C.V., MX 27651 649 92 45 ENTEL CHILE S.A., CL 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 1484 572 23 RAYA-AS, EG 29571 1099 93 63 ORANGE-COTE-IVOIRE, CI 24863 1012 388 19 LINKdotNET-AS, EG 36935 594 518 29 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36903 556 246 356 MT-MPLS, MA 36914 556 82 3 KENET-AS, KE 37069 441 1112 11 MOBINIL, EG 36992 434 1036 210 ETISALAT-MISR, EG 2018 372 318 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 13785 41095 5310 AMAZON-02, US 9808 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7395 1996 878 UNINET, MX 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 4155 2903 227 1728 USDA-1, US 36352 2553 209 1135 AS-COLOCROSSING, US 367 2446 2965 1143 DNIC-ASBLK-00306-00371, US 11830 1986 369 64 Instituto Costarricense de Electricidad y 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 12422 12307 CHINAMOBILE-CN China Mobile Communications Grou 8151 7395 6517 UNINET, MX 22773 3334 3171 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1679 1629 CMNET-HUNAN-AP China Mobile communications corp 56041 1662 1584 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1484 1461 RAYA-AS, EG 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 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 Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /10:30 /11:52 /12:160 /13:223 /14:593 /15:1118 /16:7803 /17:3488 /18:4191 /19:7662 /20:12853 /21:16099 /22:28884 /23:29480 /24:167782 /25:67 /26:83 /27:52 /28:18 /29:11 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7395 UNINET, MX 22773 2489 3334 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2347 13785 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1029 1366 BRSPD-PUBLIC, US 36352 1017 2553 AS-COLOCROSSING, US 10620 964 1653 Telmex Colombia S.A., CO 209 961 1647 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:76 2:471 3:871 4:5 5:861 6:144 7:5 8:651 9:1 11:171 12:957 13:414 14:114 15:312 16:247 17:3 18:892 20:191 21:4 22:188 23:2648 24:662 27:26 29:19 31:500 32:18 34:10 35:175 36:3000 37:758 38:2566 39:615 40:84 41:1103 42:152 43:223 44:32 45:4244 46:1033 47:113 49:26 50:478 51:381 52:1382 54:318 55:1109 56:11 57:26 58:44 59:32 60:31 61:79 62:525 63:786 64:1931 65:1099 66:1570 67:1089 68:365 69:1249 70:451 71:189 72:696 74:968 75:320 76:250 77:460 78:357 79:246 80:303 81:384 82:740 83:230 84:326 85:468 86:246 87:202 88:303 89:700 90:108 91:986 92:692 93:456 94:966 95:671 96:268 97:54 98:501 99:194 100:40 101:30 102:438 103:1360 104:1670 105:209 106:47 107:1561 108:523 109:413 110:46 111:2171 112:826 113:46 114:56 115:36 116:59 117:1196 118:85 119:67 120:1478 121:51 122:60 123:151 124:71 125:26 126:1 128:526 129:402 130:684 131:974 132:566 133:212 134:488 135:121 136:676 137:526 138:1014 139:450 140:683 141:381 142:995 143:823 144:447 145:157 146:653 147:511 148:995 149:713 150:216 151:846 152:628 153:135 154:1244 155:907 156:950 157:421 158:570 159:721 160:900 161:653 162:1044 163:448 164:737 165:685 166:808 167:678 168:1561 169:169 170:1780 171:103 172:1378 173:812 174:360 175:92 176:503 177:999 178:595 179:830 180:44 181:2268 182:27 183:1140 184:457 185:3583 186:2939 187:1620 188:806 189:1965 190:6073 191:543 192:5228 193:1837 194:1196 195:940 196:922 197:1183 198:2757 199:5067 200:4655 201:3803 202:990 203:702 204:2212 205:1831 206:1584 207:1622 208:1588 209:1950 210:379 211:478 212:910 213:765 214:940 215:37 216:2604 217:470 218:580 219:19 220:43 221:472 222:24 223:1217 End of report