IPv4 R&E Routing Table Report 20:15 GMT Mon 30 Jun, 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: 273505 Prefixes after maximum aggregation (per Origin AS): 119578 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 141749 Number of IPv4 prefixes with a valid ROA: 125792 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147671 Total ASes present in the Internet Routing Table: 20651 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 17796 Origin ASes announcing only one prefix: 7976 Transit ASes present in the Internet Routing Table: 2855 Transit-only ASes present in the Internet Routing Table: 723 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 375 Number of instances of unregistered ASNs: 407 Number of 32-bit ASNs allocated by the RIRs: 46719 Number of 32-bit ASNs visible in the Routing Table: 8206 Prefixes from 32-bit ASNs in the Routing Table: 32560 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 107 Number of addresses announced to Internet: 1565676805 Equivalent to 93 /8s, 82 /16s and 85 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 86921 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33651 Total APNIC prefixes after maximum aggregation: 7478 APNIC Deaggregation factor: 4.50 Prefixes being announced from the APNIC address blocks: 32072 Unique aggregates announced from the APNIC address blocks: 7683 APNIC Region origin ASes present in the Internet Routing Table: 1209 APNIC Prefixes per ASN: 26.53 APNIC Region origin ASes announcing only one prefix: 472 APNIC Region transit ASes present in the Internet Routing Table: 194 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 574 Number of APNIC addresses announced to Internet: 165213292 Equivalent to 9 /8s, 216 /16s and 244 /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: 125474 Total ARIN prefixes after maximum aggregation: 66222 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 123702 Unique aggregates announced from the ARIN address blocks: 67343 ARIN Region origin ASes present in the Internet Routing Table: 9328 ARIN Prefixes per ASN: 13.26 ARIN Region origin ASes announcing only one prefix: 3876 ARIN Region transit ASes present in the Internet Routing Table: 881 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: 2205 Number of ARIN addresses announced to Internet: 961594633 Equivalent to 57 /8s, 80 /16s and 197 /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: 50155 Total RIPE prefixes after maximum aggregation: 27152 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51796 Unique aggregates announced from the RIPE address blocks: 37829 RIPE Region origin ASes present in the Internet Routing Table: 4636 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1946 RIPE Region transit ASes present in the Internet Routing Table: 695 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1910 Number of RIPE addresses announced to Internet: 286672208 Equivalent to 17 /8s, 22 /16s and 69 /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: 53200 Total LACNIC prefixes after maximum aggregation: 16175 LACNIC Deaggregation factor: 3.29 Prefixes being announced from the LACNIC address blocks: 51628 Unique aggregates announced from the LACNIC address blocks: 23708 LACNIC Region origin ASes present in the Internet Routing Table: 4337 LACNIC Prefixes per ASN: 11.90 LACNIC Region origin ASes announcing only one prefix: 1575 LACNIC Region transit ASes present in the Internet Routing Table: 866 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: 3363 Number of LACNIC addresses announced to Internet: 105783872 Equivalent to 6 /8s, 78 /16s and 34 /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: 10650 Total AfriNIC prefixes after maximum aggregation: 2288 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 14200 Unique aggregates announced from the AfriNIC address blocks: 5080 AfriNIC Region origin ASes present in the Internet Routing Table: 288 AfriNIC Prefixes per ASN: 49.31 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154 Number of AfriNIC addresses announced to Internet: 46302208 Equivalent to 2 /8s, 194 /16s and 132 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2227 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 17561 630 40 208 LCS-AS-AP LARUS Limited, HK 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 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 13547 40945 5190 AMAZON-02, US 22773 3341 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2835 215 1724 USDA-1, US 36352 2567 210 1134 AS-COLOCROSSING, US 367 2426 3162 1155 DNIC-ASBLK-00306-00371, US 6167 1907 3938 520 CELLCO-PART, US 11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US 7018 1818 22860 1360 ATT-INTERNET4, US 209 1658 4889 270 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 1192 92 969 AKAMAI-ASN1, NL 3257 1042 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 813 1301 129 SAUDINETSTC-AS, SA 8452 812 1841 16 TE-AS TE-AS, EG 34984 679 74 415 TELLCOM-AS, TR 212238 657 47 581 CDNEXT, GB 8376 572 52 23 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 7141 1923 909 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1710 248 1230 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 26615 1053 2487 55 TIM SA, BR 18881 882 1127 31 TELEFONICA BRASIL S.A, BR 11172 722 124 70 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 647 91 44 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 24863 1451 389 16 LINKdotNET-AS, EG 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 24835 1060 491 109 RAYA-AS, EG 36935 597 517 41 Vodafone-, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 553 1192 126 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 37069 451 1046 15 MOBINIL, 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 13547 40945 5190 AMAZON-02, US 9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7141 1923 909 UNINET, MX 22773 3341 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2835 215 1724 USDA-1, US 36352 2567 210 1134 AS-COLOCROSSING, US 367 2426 3162 1155 DNIC-ASBLK-00306-00371, US 56046 2227 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1987 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 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou 8151 7141 6232 UNINET, MX 22773 3341 3177 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2227 2039 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1687 ATLANTICBB-JOHNSTOWN, US 56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1451 1435 LINKdotNET-AS, EG 36352 2567 1433 AS-COLOCROSSING, 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 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 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 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 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 Transit: 328766 RESERVED, ZZ 41.204.227.0/24 Origin: 36911 RESERVED, ZZ 41.204.227.0/24 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 /10:30 /11:42 /12:150 /13:210 /14:575 /15:1098 /16:7590 /17:3463 /18:4247 /19:7664 /20:12741 /21:15629 /22:28424 /23:28947 /24:162446 /25:64 /26:81 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3874 7141 UNINET, MX 22773 2496 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13547 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1031 2567 AS-COLOCROSSING, US 19901 1012 1316 BRSPD-PUBLIC, US 10620 992 1710 Telmex Colombia S.A., CO 209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:453 3:813 4:5 5:797 6:148 7:5 8:655 11:171 12:965 13:386 14:114 15:306 16:247 17:4 18:882 20:188 21:4 22:188 23:2637 24:570 27:23 29:19 31:528 32:18 33:1 34:10 35:180 36:1990 37:764 38:2470 39:550 40:68 41:989 42:21 43:226 44:28 45:4221 46:1013 47:96 49:21 50:364 51:387 52:1385 54:315 55:1096 56:11 57:22 58:16 59:37 60:32 61:84 62:543 63:752 64:1920 65:1095 66:1595 67:1075 68:372 69:1184 70:446 71:194 72:665 74:941 75:321 76:240 77:516 78:371 79:248 80:293 81:370 82:711 83:208 84:342 85:484 86:244 87:211 88:293 89:716 90:105 91:936 92:649 93:493 94:930 95:671 96:288 97:58 98:503 99:176 100:42 101:19 102:357 103:1294 104:1685 105:206 106:41 107:1558 108:554 109:438 110:40 111:1929 112:540 113:36 114:59 115:28 116:52 117:1052 118:66 119:84 120:1384 121:49 122:77 123:130 124:61 125:25 128:516 129:398 130:671 131:1034 132:568 133:213 134:461 135:128 136:605 137:510 138:976 139:433 140:712 141:362 142:1040 143:775 144:431 145:126 146:691 147:509 148:990 149:790 150:209 151:774 152:621 153:142 154:1447 155:860 156:1212 157:399 158:547 159:747 160:825 161:646 162:1067 163:432 164:722 165:570 166:815 167:688 168:1506 169:164 170:1670 171:114 172:1353 173:813 174:362 175:86 176:780 177:1117 178:602 179:829 180:41 181:2105 182:28 183:1027 184:461 185:3527 186:2518 187:1602 188:840 189:1949 190:5322 191:489 192:5233 193:1907 194:1256 195:933 196:707 197:1260 198:2738 199:4976 200:4434 201:3693 202:945 203:718 204:2201 205:1807 206:1565 207:1616 208:1496 209:1989 210:331 211:443 212:999 213:771 214:923 215:35 216:2575 217:444 218:546 219:19 220:34 221:408 222:24 223:946 End of report