IPv4 R&E Routing Table Report 20:15 GMT Sun 11 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: 261913 Prefixes after maximum aggregation (per Origin AS): 115039 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135021 Number of IPv4 prefixes with a valid ROA: 117381 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 144492 Total ASes present in the Internet Routing Table: 19685 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 17032 Origin ASes announcing only one prefix: 7756 Transit ASes present in the Internet Routing Table: 2653 Transit-only ASes present in the Internet Routing Table: 710 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 306 Number of instances of unregistered ASNs: 310 Number of 32-bit ASNs allocated by the RIRs: 46393 Number of 32-bit ASNs visible in the Routing Table: 7369 Prefixes from 32-bit ASNs in the Routing Table: 27393 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 130 Number of addresses announced to Internet: 1547337949 Equivalent to 92 /8s, 58 /16s and 128 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 41.8 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: 82329 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32682 Total APNIC prefixes after maximum aggregation: 7625 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 31040 Unique aggregates announced from the APNIC address blocks: 8019 APNIC Region origin ASes present in the Internet Routing Table: 1222 APNIC Prefixes per ASN: 25.40 APNIC Region origin ASes announcing only one prefix: 481 APNIC Region transit ASes present in the Internet Routing Table: 200 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: 556 Number of APNIC addresses announced to Internet: 167621484 Equivalent to 9 /8s, 253 /16s and 179 /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: 125638 Total ARIN prefixes after maximum aggregation: 65331 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122565 Unique aggregates announced from the ARIN address blocks: 65925 ARIN Region origin ASes present in the Internet Routing Table: 9352 ARIN Prefixes per ASN: 13.11 ARIN Region origin ASes announcing only one prefix: 3912 ARIN Region transit ASes present in the Internet Routing Table: 866 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: 2180 Number of ARIN addresses announced to Internet: 960508641 Equivalent to 57 /8s, 64 /16s and 50 /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: 48317 Total RIPE prefixes after maximum aggregation: 26127 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50097 Unique aggregates announced from the RIPE address blocks: 36475 RIPE Region origin ASes present in the Internet Routing Table: 4576 RIPE Prefixes per ASN: 10.95 RIPE Region origin ASes announcing only one prefix: 1942 RIPE Region transit ASes present in the Internet Routing Table: 692 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: 1865 Number of RIPE addresses announced to Internet: 281047632 Equivalent to 16 /8s, 192 /16s and 114 /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: 44540 Total LACNIC prefixes after maximum aggregation: 13460 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43682 Unique aggregates announced from the LACNIC address blocks: 20119 LACNIC Region origin ASes present in the Internet Routing Table: 3439 LACNIC Prefixes per ASN: 12.70 LACNIC Region origin ASes announcing only one prefix: 1314 LACNIC Region transit ASes present in the Internet Routing Table: 691 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: 2624 Number of LACNIC addresses announced to Internet: 96786752 Equivalent to 5 /8s, 196 /16s and 217 /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: 10430 Total AfriNIC prefixes after maximum aggregation: 2292 AfriNIC Deaggregation factor: 4.55 Prefixes being announced from the AfriNIC address blocks: 14399 Unique aggregates announced from the AfriNIC address blocks: 4370 AfriNIC Region origin ASes present in the Internet Routing Table: 266 AfriNIC Prefixes per ASN: 54.13 AfriNIC Region origin ASes announcing only one prefix: 107 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: 144 Number of AfriNIC addresses announced to Internet: 41323008 Equivalent to 2 /8s, 118 /16s and 138 /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 10611 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1702 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 867 55 412 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 602 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 505 800 138 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 13308 40835 4845 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2707 206 1653 USDA-1, US 36352 2527 208 1120 AS-COLOCROSSING, US 367 2423 2906 1175 DNIC-ASBLK-00306-00371, US 7018 2098 22890 1547 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 488 CELLCO-PART, US 209 1663 4890 273 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 1936 130 50 ALJAWWALSTC-AS, SA 20940 1203 94 984 AKAMAI-ASN1, NL 3257 994 2077 747 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 34984 688 76 411 TELLCOM-AS, TR 8452 658 1842 17 TE-AS TE-AS, EG 8376 572 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE 212238 568 41 500 CDNEXT, GB 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 7479 2026 1008 UNINET, MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 52 TIM SA, BR 18881 883 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 24835 1061 553 39 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 969 100 75 ORANGE-COTE-IVOIRE, CI 36935 699 135 178 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 536 82 3 KENET-AS, KE 37069 469 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 13308 40835 4845 AMAZON-02, US 9808 10611 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7479 2026 1008 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2707 206 1653 USDA-1, US 36352 2527 208 1120 AS-COLOCROSSING, US 367 2423 2906 1175 DNIC-ASBLK-00306-00371, US 7018 2098 22890 1547 ATT-INTERNET4, US 11830 1995 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 10611 10516 CHINAMOBILE-CN China Mobile Communications Grou 8151 7479 6471 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1995 1931 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1702 1516 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 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 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, 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 /8:13 /9:10 /10:29 /11:41 /12:151 /13:206 /14:569 /15:1095 /16:7562 /17:3417 /18:4192 /19:7575 /20:12373 /21:15177 /22:27526 /23:27605 /24:154150 /25:62 /26:82 /27:34 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3975 7479 UNINET, MX 22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2320 13308 AMAZON-02, US 11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1009 2527 AS-COLOCROSSING, US 19901 973 1251 BRSPD-PUBLIC, US 209 964 1663 CENTURYLINK-US-LEGACY-QWEST, 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) ---------------------------------------------- 1:69 2:493 3:706 4:5 5:783 6:155 7:5 8:680 11:171 12:994 13:325 14:111 15:302 16:247 17:6 18:888 20:177 21:4 22:188 23:2587 24:642 27:21 29:19 31:479 32:9 33:1 34:10 35:134 36:1579 37:937 38:1913 39:553 40:62 41:919 42:213 43:195 44:34 45:3625 46:945 47:85 49:19 50:361 51:385 52:1386 54:300 55:1093 56:11 57:16 58:18 59:32 60:16 61:72 62:545 63:762 64:1991 65:1088 66:1586 67:957 68:401 69:1123 70:442 71:202 72:768 74:960 75:426 76:249 77:462 78:338 79:282 80:294 81:353 82:696 83:244 84:344 85:448 86:234 87:242 88:277 89:834 90:103 91:927 92:596 93:458 94:920 95:616 96:289 97:59 98:458 99:170 100:36 101:22 102:364 103:1231 104:1618 105:133 106:16 107:1519 108:549 109:380 110:34 111:1946 112:456 113:39 114:42 115:12 116:62 117:1045 118:75 119:130 120:1188 121:46 122:66 123:78 124:56 125:25 128:472 129:307 130:686 131:908 132:547 133:212 134:496 135:112 136:570 137:499 138:880 139:442 140:709 141:455 142:1024 143:667 144:434 145:135 146:677 147:489 148:847 149:766 150:354 151:633 152:482 153:129 154:1748 155:831 156:1510 157:381 158:542 159:686 160:826 161:669 162:947 163:357 164:713 165:768 166:780 167:629 168:1105 169:144 170:1582 171:122 172:1372 173:833 174:250 175:55 176:660 177:813 178:489 179:670 180:49 181:1735 182:30 183:892 184:452 185:3356 186:2021 187:1384 188:779 189:1735 190:4226 191:421 192:5169 193:1813 194:1203 195:930 196:694 197:1569 198:2761 199:4896 200:3574 201:3290 202:1005 203:743 204:2157 205:1945 206:1555 207:1504 208:1435 209:1940 210:292 211:431 212:937 213:833 214:986 215:42 216:2536 217:420 218:520 219:19 220:26 221:334 222:32 223:773 End of report