IPv4 R&E Routing Table Report 20:15 GMT Mon 05 May, 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: 261858 Prefixes after maximum aggregation (per Origin AS): 114660 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 134984 Number of IPv4 prefixes with a valid ROA: 118629 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 143187 Total ASes present in the Internet Routing Table: 19659 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 17001 Origin ASes announcing only one prefix: 7722 Transit ASes present in the Internet Routing Table: 2658 Transit-only ASes present in the Internet Routing Table: 695 Paths with bogon ASNs present in the IPv4 Routing Table: 6 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: 308 Number of instances of unregistered ASNs: 309 Number of 32-bit ASNs allocated by the RIRs: 46335 Number of 32-bit ASNs visible in the Routing Table: 7383 Prefixes from 32-bit ASNs in the Routing Table: 27617 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 138 Number of addresses announced to Internet: 1555267165 Equivalent to 92 /8s, 179 /16s and 126 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83336 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32078 Total APNIC prefixes after maximum aggregation: 7508 APNIC Deaggregation factor: 4.27 Prefixes being announced from the APNIC address blocks: 30464 Unique aggregates announced from the APNIC address blocks: 7889 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 25.47 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 203 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 543 Number of APNIC addresses announced to Internet: 167498604 Equivalent to 9 /8s, 251 /16s and 211 /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: 125383 Total ARIN prefixes after maximum aggregation: 64870 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122265 Unique aggregates announced from the ARIN address blocks: 65654 ARIN Region origin ASes present in the Internet Routing Table: 9327 ARIN Prefixes per ASN: 13.11 ARIN Region origin ASes announcing only one prefix: 3895 ARIN Region transit ASes present in the Internet Routing Table: 858 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: 2175 Number of ARIN addresses announced to Internet: 968525153 Equivalent to 57 /8s, 186 /16s and 133 /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: 49758 Total RIPE prefixes after maximum aggregation: 26225 RIPE Deaggregation factor: 1.90 Prefixes being announced from the RIPE address blocks: 51546 Unique aggregates announced from the RIPE address blocks: 36595 RIPE Region origin ASes present in the Internet Routing Table: 4578 RIPE Prefixes per ASN: 11.26 RIPE Region origin ASes announcing only one prefix: 1925 RIPE Region transit ASes present in the Internet Routing Table: 693 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: 1869 Number of RIPE addresses announced to Internet: 281292368 Equivalent to 16 /8s, 196 /16s and 46 /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: 44098 Total LACNIC prefixes after maximum aggregation: 13490 LACNIC Deaggregation factor: 3.27 Prefixes being announced from the LACNIC address blocks: 43224 Unique aggregates announced from the LACNIC address blocks: 20042 LACNIC Region origin ASes present in the Internet Routing Table: 3479 LACNIC Prefixes per ASN: 12.42 LACNIC Region origin ASes announcing only one prefix: 1332 LACNIC Region transit ASes present in the Internet Routing Table: 698 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2656 Number of LACNIC addresses announced to Internet: 96216896 Equivalent to 5 /8s, 188 /16s and 39 /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: 10233 Total AfriNIC prefixes after maximum aggregation: 2361 AfriNIC Deaggregation factor: 4.33 Prefixes being announced from the AfriNIC address blocks: 14221 Unique aggregates announced from the AfriNIC address blocks: 4683 AfriNIC Region origin ASes present in the Internet Routing Table: 263 AfriNIC Prefixes per ASN: 54.07 AfriNIC Region origin ASes announcing only one prefix: 101 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 140 Number of AfriNIC addresses announced to Internet: 41681664 Equivalent to 2 /8s, 124 /16s and 3 /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 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 971 61 419 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 500 796 137 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 13322 40826 4469 AMAZON-02, US 22773 3364 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2679 204 1649 USDA-1, US 36352 2516 207 1119 AS-COLOCROSSING, US 367 2436 2904 1181 DNIC-ASBLK-00306-00371, US 7018 2101 22891 1550 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1856 3733 470 CELLCO-PART, US 209 1665 4890 275 CENTURYLINK-US-LEGACY-QWEST, 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 3251 197 64 ALJAWWALSTC-AS, SA 20940 1175 92 964 AKAMAI-ASN1, NL 3257 996 2077 748 GTT-BACKBONE GTT, US 3215 890 4818 287 France Telecom - Orange, FR 25019 857 1303 130 SAUDINETSTC-AS, SA 34984 686 76 409 TELLCOM-AS, TR 8452 660 1842 17 TE-AS TE-AS, EG 203214 577 45 362 HULUMTELE, IQ 8376 574 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE 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 6868 1883 1022 UNINET, MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 22 Telefonica del Peru S.A.A., PE 26615 1014 2503 52 TIM SA, BR 18881 882 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 TELEFONICA BRASIL S.A, BR 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 24863 1491 389 16 LINKdotNET-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 24835 882 552 38 RAYA-AS, EG 29571 825 100 76 ORANGE-COTE-IVOIRE, CI 36935 719 141 184 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 537 82 3 KENET-AS, KE 37069 465 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 373 318 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 13322 40826 4469 AMAZON-02, US 9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 8151 6868 1883 1022 UNINET, MX 22773 3364 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 39891 3251 197 64 ALJAWWALSTC-AS, SA 4155 2679 204 1649 USDA-1, US 36352 2516 207 1119 AS-COLOCROSSING, US 367 2436 2904 1181 DNIC-ASBLK-00306-00371, US 7018 2101 22891 1550 ATT-INTERNET4, 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 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou 8151 6868 5846 UNINET, MX 22773 3364 3199 ASN-CXA-ALL-CCI-22773-RDC, US 39891 3251 3187 ALJAWWALSTC-AS, SA 11830 1994 1930 Instituto Costarricense de Electricidad y Telec 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co 56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.158.216.0/24 Origin: 204535 RESERVED, ZZ 23.158.216.0/24 Transit: 22427 GNET-AS, US 23.166.120.0/24 Origin: 59993 UILLLC-20230328, US 23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, 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 /8:13 /9:10 /10:29 /11:41 /12:151 /13:214 /14:578 /15:1098 /16:7625 /17:3445 /18:4203 /19:7622 /20:12320 /21:15253 /22:27520 /23:27471 /24:154041 /25:60 /26:84 /27:36 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3575 6868 UNINET, MX 22773 2516 3364 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2368 3251 ALJAWWALSTC-AS, SA 16509 2339 13322 AMAZON-02, US 11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR 10620 1089 1930 Telmex Colombia S.A., CO 36352 1012 2516 AS-COLOCROSSING, US 209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US 19901 964 1242 BRSPD-PUBLIC, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:66 2:473 3:677 4:6 5:1050 6:159 7:5 8:632 11:171 12:996 13:308 14:110 15:301 16:245 17:5 18:889 20:176 21:4 22:188 23:2549 24:644 27:21 29:19 31:470 32:9 33:1 34:10 35:133 36:1322 37:1058 38:1908 39:551 40:62 41:949 42:213 43:187 44:33 45:3640 46:951 47:84 49:19 50:345 51:379 52:1384 54:297 55:1084 56:11 57:15 58:18 59:32 60:16 61:72 62:543 63:765 64:1916 65:1082 66:1547 67:953 68:402 69:1117 70:442 71:202 72:770 74:957 75:426 76:249 77:467 78:586 79:272 80:294 81:336 82:741 83:245 84:342 85:458 86:234 87:240 88:277 89:841 90:103 91:936 92:596 93:845 94:929 95:806 96:287 97:66 98:464 99:164 100:35 101:23 102:386 103:1223 104:1438 105:140 106:16 107:1498 108:553 109:389 110:33 111:1914 112:448 113:39 114:43 115:13 116:62 117:1035 118:71 119:130 120:1174 121:46 122:70 123:73 124:56 125:25 128:469 129:306 130:691 131:888 132:558 133:212 134:488 135:112 136:572 137:497 138:878 139:442 140:707 141:446 142:1024 143:645 144:427 145:135 146:674 147:509 148:859 149:724 150:385 151:630 152:495 153:129 154:1863 155:811 156:1423 157:376 158:537 159:685 160:709 161:696 162:939 163:351 164:706 165:768 166:775 167:633 168:1107 169:143 170:1582 171:123 172:1356 173:829 174:250 175:54 176:659 177:837 178:487 179:675 180:49 181:1737 182:29 183:866 184:451 185:3360 186:2022 187:1298 188:779 189:1627 190:4214 191:418 192:5164 193:1815 194:1216 195:922 196:680 197:1632 198:2728 199:4876 200:3566 201:3187 202:1000 203:738 204:2145 205:1943 206:1544 207:1493 208:1420 209:1937 210:308 211:430 212:929 213:834 214:985 215:45 216:2524 217:415 218:516 219:19 220:26 221:304 222:32 223:762 End of report