IPv4 R&E Routing Table Report 20:15 GMT Mon 02 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: 264827 Prefixes after maximum aggregation (per Origin AS): 116313 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 136153 Number of IPv4 prefixes with a valid ROA: 119372 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 145413 Total ASes present in the Internet Routing Table: 20001 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 17259 Origin ASes announcing only one prefix: 7828 Transit ASes present in the Internet Routing Table: 2742 Transit-only ASes present in the Internet Routing Table: 713 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: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 313 Number of instances of unregistered ASNs: 317 Number of 32-bit ASNs allocated by the RIRs: 46555 Number of 32-bit ASNs visible in the Routing Table: 7686 Prefixes from 32-bit ASNs in the Routing Table: 28695 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: 109 Number of addresses announced to Internet: 1557602781 Equivalent to 92 /8s, 215 /16s and 33 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83236 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32691 Total APNIC prefixes after maximum aggregation: 7489 APNIC Deaggregation factor: 4.37 Prefixes being announced from the APNIC address blocks: 31096 Unique aggregates announced from the APNIC address blocks: 7563 APNIC Region origin ASes present in the Internet Routing Table: 1223 APNIC Prefixes per ASN: 25.43 APNIC Region origin ASes announcing only one prefix: 482 APNIC Region transit ASes present in the Internet Routing Table: 204 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 562 Number of APNIC addresses announced to Internet: 166656876 Equivalent to 9 /8s, 238 /16s and 251 /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: 126197 Total ARIN prefixes after maximum aggregation: 65963 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123321 Unique aggregates announced from the ARIN address blocks: 66485 ARIN Region origin ASes present in the Internet Routing Table: 9343 ARIN Prefixes per ASN: 13.20 ARIN Region origin ASes announcing only one prefix: 3902 ARIN Region transit ASes present in the Internet Routing Table: 868 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: 2195 Number of ARIN addresses announced to Internet: 960739041 Equivalent to 57 /8s, 67 /16s and 182 /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: 49349 Total RIPE prefixes after maximum aggregation: 26675 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51192 Unique aggregates announced from the RIPE address blocks: 37409 RIPE Region origin ASes present in the Internet Routing Table: 4617 RIPE Prefixes per ASN: 11.09 RIPE Region origin ASes announcing only one prefix: 1949 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: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1899 Number of RIPE addresses announced to Internet: 285906768 Equivalent to 17 /8s, 10 /16s and 151 /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: 45261 Total LACNIC prefixes after maximum aggregation: 13610 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 44390 Unique aggregates announced from the LACNIC address blocks: 20286 LACNIC Region origin ASes present in the Internet Routing Table: 3690 LACNIC Prefixes per ASN: 12.03 LACNIC Region origin ASes announcing only one prefix: 1386 LACNIC Region transit ASes present in the Internet Routing Table: 774 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: 2874 Number of LACNIC addresses announced to Internet: 97275456 Equivalent to 5 /8s, 204 /16s and 78 /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: 11016 Total AfriNIC prefixes after maximum aggregation: 2364 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 14719 Unique aggregates announced from the AfriNIC address blocks: 4302 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 50.93 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 46980352 Equivalent to 2 /8s, 204 /16s and 221 /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 10879 8756 96 CHINAMOBILE-CN China Mobile Communication 56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati 56041 1633 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 851 54 376 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 517 848 138 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 13572 40826 5182 AMAZON-02, US 22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2767 210 1701 USDA-1, US 36352 2545 209 1122 AS-COLOCROSSING, US 367 2448 2912 1179 DNIC-ASBLK-00306-00371, US 7018 2046 22865 1501 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1887 3867 499 CELLCO-PART, US 209 1661 4889 271 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 1176 92 961 AKAMAI-ASN1, NL 3257 989 2078 772 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 816 1301 129 SAUDINETSTC-AS, SA 8452 791 1841 16 TE-AS TE-AS, EG 34984 676 74 406 TELLCOM-AS, TR 212238 640 47 566 CDNEXT, GB 8376 577 53 21 Jordan Data Communications, JO 203214 576 43 382 HULUMTELE, IQ 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 7412 1989 971 UNINET, MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 10620 1902 281 1294 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1035 2503 52 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 553 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 1479 389 16 LINKdotNET-AS, EG 29571 1136 100 74 ORANGE-COTE-IVOIRE, CI 24835 1053 535 35 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 577 122 154 Vodafone-, EG 37069 469 1046 15 MOBINIL, EG 36914 465 82 3 KENET-AS, KE 36903 450 203 335 MT-MPLS, MA 2018 374 318 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 13572 40826 5182 AMAZON-02, US 9808 10879 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7412 1989 971 UNINET, MX 22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2767 210 1701 USDA-1, US 36352 2545 209 1122 AS-COLOCROSSING, US 367 2448 2912 1179 DNIC-ASBLK-00306-00371, US 7018 2046 22865 1501 ATT-INTERNET4, US 11830 1991 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 10879 10783 CHINAMOBILE-CN China Mobile Communications Grou 8151 7412 6441 UNINET, MX 22773 3345 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1991 1927 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56041 1633 1543 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1479 1463 LINKdotNET-AS, EG 56047 1483 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 /10:30 /11:41 /12:150 /13:209 /14:573 /15:1101 /16:7634 /17:3439 /18:4211 /19:7602 /20:12511 /21:15252 /22:27617 /23:28076 /24:156133 /25:62 /26:82 /27:36 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3983 7412 UNINET, MX 22773 2496 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2372 13572 AMAZON-02, US 11830 1694 1991 Instituto Costarricense de Electricidad y Telecom., CR 10620 1082 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1034 2545 AS-COLOCROSSING, US 19901 984 1278 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 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 2:473 3:797 4:5 5:789 6:155 7:5 8:674 11:171 12:987 13:378 14:114 15:305 16:247 17:6 18:888 20:185 21:4 22:188 23:2565 24:640 27:22 29:19 31:520 32:9 33:1 34:10 35:149 36:1830 37:993 38:1943 39:552 40:62 41:934 42:21 43:213 44:35 45:3730 46:947 47:93 49:20 50:348 51:387 52:1399 54:318 55:1098 56:11 57:19 58:16 59:33 60:16 61:74 62:539 63:751 64:1977 65:1090 66:1548 67:993 68:402 69:1129 70:476 71:198 72:721 74:936 75:320 76:248 77:486 78:356 79:241 80:314 81:377 82:715 83:234 84:336 85:435 86:233 87:207 88:289 89:705 90:104 91:932 92:636 93:486 94:923 95:742 96:289 97:53 98:460 99:182 100:35 101:18 102:353 103:1224 104:1656 105:207 106:3 107:1557 108:553 109:400 110:35 111:1919 112:499 113:39 114:40 115:23 116:62 117:1042 118:62 119:89 120:1265 121:43 122:66 123:76 124:57 125:26 128:493 129:397 130:691 131:951 132:567 133:211 134:495 135:112 136:597 137:508 138:907 139:439 140:699 141:360 142:1029 143:696 144:443 145:136 146:685 147:517 148:875 149:783 150:352 151:639 152:484 153:129 154:1668 155:856 156:1389 157:370 158:553 159:735 160:880 161:635 162:995 163:428 164:717 165:776 166:791 167:652 168:1144 169:163 170:1597 171:122 172:1376 173:796 174:285 175:62 176:779 177:866 178:503 179:709 180:45 181:1811 182:31 183:966 184:453 185:3519 186:2090 187:1462 188:824 189:1764 190:4153 191:463 192:5171 193:1889 194:1228 195:934 196:688 197:1545 198:2750 199:4938 200:3658 201:3301 202:1009 203:741 204:2163 205:1950 206:1531 207:1541 208:1457 209:1889 210:297 211:422 212:1039 213:758 214:986 215:42 216:2544 217:425 218:525 219:18 220:28 221:360 222:31 223:823 End of report