IPv4 R&E Routing Table Report 20:15 GMT Sat 16 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: 280281 Prefixes after maximum aggregation (per Origin AS): 120107 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143398 Number of IPv4 prefixes with a valid ROA: 131915 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148324 Total ASes present in the Internet Routing Table: 20680 Prefixes per ASN: 13.55 Origin-only ASes present in the Internet Routing Table: 17835 Origin ASes announcing only one prefix: 7941 Transit ASes present in the Internet Routing Table: 2845 Transit-only ASes present in the Internet Routing Table: 703 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: 349 Number of instances of unregistered ASNs: 378 Number of 32-bit ASNs allocated by the RIRs: 47181 Number of 32-bit ASNs visible in the Routing Table: 8186 Prefixes from 32-bit ASNs in the Routing Table: 33330 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: 105 Number of addresses announced to Internet: 1638929671 Equivalent to 97 /8s, 176 /16s and 21 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89366 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36403 Total APNIC prefixes after maximum aggregation: 7582 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35281 Unique aggregates announced from the APNIC address blocks: 8054 APNIC Region origin ASes present in the Internet Routing Table: 1206 APNIC Prefixes per ASN: 29.25 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 193 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 562 Number of APNIC addresses announced to Internet: 173680238 Equivalent to 10 /8s, 90 /16s and 38 /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: 126630 Total ARIN prefixes after maximum aggregation: 66563 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124767 Unique aggregates announced from the ARIN address blocks: 68490 ARIN Region origin ASes present in the Internet Routing Table: 9276 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3852 ARIN Region transit ASes present in the Internet Routing Table: 871 Average ARIN Region AS path length visible: 5.3 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: 1023572489 Equivalent to 61 /8s, 2 /16s and 122 /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: 49613 Total RIPE prefixes after maximum aggregation: 27042 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51757 Unique aggregates announced from the RIPE address blocks: 38134 RIPE Region origin ASes present in the Internet Routing Table: 4703 RIPE Prefixes per ASN: 11.01 RIPE Region origin ASes announcing only one prefix: 1956 RIPE Region transit ASes present in the Internet Routing Table: 717 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: 283721808 Equivalent to 16 /8s, 233 /16s and 64 /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: 56223 Total LACNIC prefixes after maximum aggregation: 16232 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54383 Unique aggregates announced from the LACNIC address blocks: 24312 LACNIC Region origin ASes present in the Internet Routing Table: 4339 LACNIC Prefixes per ASN: 12.53 LACNIC Region origin ASes announcing only one prefix: 1535 LACNIC Region transit ASes present in the Internet Routing Table: 851 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: 3308 Number of LACNIC addresses announced to Internet: 108918592 Equivalent to 6 /8s, 125 /16s and 247 /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: 11063 Total AfriNIC prefixes after maximum aggregation: 2424 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 13988 Unique aggregates announced from the AfriNIC address blocks: 4309 AfriNIC Region origin ASes present in the Internet Routing Table: 317 AfriNIC Prefixes per ASN: 44.13 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 175 Number of AfriNIC addresses announced to Internet: 48922624 Equivalent to 2 /8s, 234 /16s and 128 /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 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1686 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1667 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 608 2137 469 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 521 877 134 ALIBABA-CN-NET Alibaba US Technology Co., 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 13801 41099 5336 AMAZON-02, US 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2936 229 1738 USDA-1, US 36352 2525 207 1158 AS-COLOCROSSING, US 367 2402 2913 1107 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1661 4887 259 CENTURYLINK-US-LEGACY-QWEST, US 7018 1573 22815 1173 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 1209 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 673 48 597 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 616 53 26 Jordan Data Communications, JO 8452 600 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 35819 520 516 55 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 7316 1972 832 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1655 239 1203 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 891 1127 31 TELEFONICA BRASIL S.A, BR 11664 801 278 29 Techtel LMDS Comunicaciones Interactivas 27651 650 92 45 ENTEL CHILE S.A., CL 28006 644 76 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1273 572 23 RAYA-AS, EG 29571 1156 93 56 ORANGE-COTE-IVOIRE, CI 24863 896 389 23 LINKdotNET-AS, EG 37069 661 1112 11 MOBINIL, EG 36935 616 520 39 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 564 82 3 KENET-AS, KE 36903 563 246 362 MT-MPLS, MA 36992 439 1038 211 ETISALAT-MISR, EG 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 13801 41099 5336 AMAZON-02, US 9808 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7316 1972 832 UNINET, MX 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2936 229 1738 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2525 207 1158 AS-COLOCROSSING, US 367 2402 2913 1107 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 12685 12570 CHINAMOBILE-CN China Mobile Communications Grou 8151 7316 6484 UNINET, MX 22773 3339 3177 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2907 2717 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 1686 1636 CMNET-HUNAN-AP China Mobile communications corp 56041 1667 1589 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 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 32182 UNALLOCATED 8.9.96.0/23 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 396146 UNALLOCATED 8.44.213.0/24 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 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 /16:7787 /17:3483 /18:4194 /19:7597 /20:12952 /21:15978 /22:28496 /23:29453 /24:167895 /25:67 /26:83 /27:52 /28:18 /29:10 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3960 7316 UNINET, MX 22773 2495 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2366 13801 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1036 1385 BRIGHTSPEED, US 36352 1008 2525 AS-COLOCROSSING, US 10620 966 1655 Telmex Colombia S.A., CO 209 957 1661 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 2:467 3:878 4:5 5:864 6:142 7:5 8:648 9:2 11:171 12:882 13:396 14:114 15:319 16:245 17:3 18:895 20:191 21:4 22:188 23:2635 24:661 27:22 29:19 31:512 32:12 34:10 35:174 36:3055 37:754 38:2606 39:633 40:87 41:1100 42:152 43:205 44:30 45:4251 46:1030 47:112 49:25 50:484 51:384 52:1377 54:315 55:1109 56:11 57:26 58:44 59:30 60:31 61:53 62:537 63:785 64:1954 65:1099 66:1585 67:1086 68:363 69:1255 70:450 71:189 72:690 74:966 75:322 76:248 77:423 78:354 79:253 80:310 81:385 82:733 83:228 84:323 85:469 86:255 87:228 88:302 89:717 90:109 91:989 92:694 93:522 94:974 95:666 96:266 97:54 98:503 99:201 100:40 101:30 102:436 103:1256 104:1670 105:217 106:47 107:1552 108:541 109:436 110:51 111:2276 112:852 113:44 114:54 115:33 116:50 117:1206 118:73 119:68 120:1497 121:49 122:62 123:145 124:69 125:26 126:1 128:541 129:401 130:671 131:989 132:572 133:212 134:510 135:121 136:673 137:518 138:1024 139:447 140:696 141:381 142:992 143:827 144:428 145:127 146:650 147:506 148:993 149:770 150:197 151:836 152:638 153:135 154:1254 155:911 156:937 157:417 158:576 159:726 160:910 161:640 162:1033 163:450 164:743 165:671 166:811 167:703 168:1522 169:168 170:1784 171:101 172:1318 173:813 174:365 175:89 176:488 177:943 178:595 179:872 180:43 181:2314 182:21 183:1158 184:455 185:3558 186:2994 187:1589 188:806 189:1937 190:6127 191:560 192:5224 193:1838 194:1201 195:911 196:952 197:1122 198:2754 199:5146 200:4592 201:3687 202:986 203:700 204:2206 205:1812 206:1589 207:1620 208:1590 209:1956 210:347 211:480 212:969 213:778 214:951 215:39 216:2608 217:475 218:589 219:19 220:43 221:472 222:24 223:1246 End of report