IPv4 R&E Routing Table Report 23:05 GMT Fri 04 Apr, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 974425 Prefixes after maximum aggregation (per Origin AS): 374723 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476267 Number of IPv4 prefixes with a valid ROA: 536530 Number of IPv4 prefixes with an invalid ROA: 695 Number of IPv4 prefixes with no ROA: 437200 Total ASes present in the Internet Routing Table: 76595 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65751 Origin ASes announcing only one prefix: 26895 Transit ASes present in the Internet Routing Table: 10844 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1015 Number of instances of unregistered ASNs: 1019 Number of 32-bit ASNs allocated by the RIRs: 46151 Number of 32-bit ASNs visible in the Routing Table: 38004 Prefixes from 32-bit ASNs in the Routing Table: 199981 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3106950656 Equivalent to 185 /8s, 48 /16s and 78 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 320113 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254924 Total APNIC prefixes after maximum aggregation: 76402 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246671 Unique aggregates announced from the APNIC address blocks: 102566 APNIC Region origin ASes present in the Internet Routing Table: 14509 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4435 APNIC Region transit ASes present in the Internet Routing Table: 1954 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 56 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10043 Number of APNIC addresses announced to Internet: 748540928 Equivalent to 44 /8s, 157 /16s and 212 /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: 287590 Total ARIN prefixes after maximum aggregation: 128536 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288556 Unique aggregates announced from the ARIN address blocks: 137213 ARIN Region origin ASes present in the Internet Routing Table: 19195 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1897 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5166 Number of ARIN addresses announced to Internet: 1349746176 Equivalent to 80 /8s, 115 /16s and 126 /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: 272542 Total RIPE prefixes after maximum aggregation: 133090 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270530 Unique aggregates announced from the RIPE address blocks: 173639 RIPE Region origin ASes present in the Internet Routing Table: 28863 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3965 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12351 Number of RIPE addresses announced to Internet: 731825152 Equivalent to 43 /8s, 158 /16s and 196 /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: 123100 Total LACNIC prefixes after maximum aggregation: 29324 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119774 Unique aggregates announced from the LACNIC address blocks: 48816 LACNIC Region origin ASes present in the Internet Routing Table: 11219 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2464 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9170 Number of LACNIC addresses announced to Internet: 171621120 Equivalent to 10 /8s, 58 /16s and 187 /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: 35254 Total AfriNIC prefixes after maximum aggregation: 6741 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 48429 Unique aggregates announced from the AfriNIC address blocks: 13636 AfriNIC Region origin ASes present in the Internet Routing Table: 1907 AfriNIC Prefixes per ASN: 25.40 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104979200 Equivalent to 6 /8s, 65 /16s and 219 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6217 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4215 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 434 197 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12979 39641 3945 AMAZON-02, US 11492 4686 311 585 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3626 8765 951 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2984 1250 2205 AKAMAI-AS, US 396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2619 216 798 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7711 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 125 AKAMAI-ASN1, NL 9009 3766 325 1961 M247, RO 12389 3072 2303 895 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2085 148 1536 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1522 1852 14 TE-AS TE-AS, EG 62240 1492 98 750 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11916 3244 584 UNINET, MX 10620 3526 487 971 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1049 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1043 374 163 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1703 599 30 RAYA-AS, EG 24863 1631 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 915 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 540 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12979 39641 3945 AMAZON-02, US 8151 11916 3244 584 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7711 1714 145 UNI2-AS, ES 7545 6217 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4686 311 585 CABLEONE, US 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4215 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11916 11332 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7711 7566 UNI2-AS, ES 7545 6217 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4215 4190 FPT-AS-AP FPT Telecom Company, VN 11492 4686 4101 CABLEONE, US 9498 4252 3976 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 20940 3897 3772 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 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 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:16 /10:41 /11:93 /12:302 /13:579 /14:1217 /15:2140 /16:13889 /17:8230 /18:13654 /19:24481 /20:43589 /21:51554 /22:111639 /23:101030 /24:601955 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6636 7711 UNI2-AS, ES 8151 6120 11916 UNINET, MX 11492 3531 4686 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 12979 AMAZON-02, US 30036 2204 2544 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3526 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2336 2:1519 3:614 4:10 5:4593 6:163 7:6 8:1547 9:1 11:172 12:1373 13:346 14:2509 15:351 16:279 17:361 18:916 20:470 21:4 22:188 23:7308 24:2830 25:2 27:2693 29:19 31:3225 32:37 34:83 35:204 36:2395 37:4674 38:8910 39:899 40:154 41:4198 42:1894 43:2541 44:361 45:18429 46:4928 47:289 49:1959 50:1898 51:590 52:1551 54:300 55:879 56:11 57:249 58:2189 59:1239 60:1171 61:2818 62:2902 63:1833 64:5492 65:2174 66:4619 67:3056 68:1104 69:3981 70:1070 71:611 72:2833 74:2797 75:1607 76:612 77:2706 78:1873 79:1731 80:2193 81:2019 82:3111 83:1417 84:1833 85:3399 86:1042 87:2149 88:1278 89:4315 90:775 91:8307 92:2797 93:2871 94:4054 95:4293 96:1433 97:311 98:993 99:641 100:71 101:1397 102:3729 103:32132 104:4794 105:750 106:988 107:2611 108:1198 109:4096 110:2230 111:3309 112:2039 113:1805 114:1968 115:2124 116:2033 117:2737 118:2877 119:1943 120:1870 121:1361 122:2743 123:2159 124:1610 125:2854 126:88 128:1559 129:955 130:1262 131:1889 132:775 133:451 134:1526 135:331 136:1302 137:1108 138:2884 139:1609 140:1566 141:1490 142:1836 143:1646 144:1064 145:514 146:2152 147:2100 148:2648 149:2894 150:1244 151:1740 152:2097 153:503 154:7911 155:1624 156:3207 157:1893 158:1269 159:2427 160:3555 161:1880 162:3700 163:1969 164:1698 165:2202 166:1437 167:1876 168:4024 169:786 170:5080 171:1001 172:4458 173:3219 174:909 175:1286 176:3686 177:4666 178:3783 179:2295 180:2570 181:4047 182:3370 183:2031 184:2138 185:21479 186:5082 187:4408 188:4198 189:4157 190:9634 191:1448 192:11157 193:9409 194:7782 195:5500 196:3289 197:3783 198:6048 199:8409 200:8007 201:6287 202:10319 203:10521 204:4517 205:3646 206:4568 207:3435 208:4195 209:5146 210:4501 211:2534 212:4495 213:3758 214:1052 215:48 216:6591 217:3084 218:1329 219:377 220:2085 221:1071 222:712 223:2319 End of report