IPv4 R&E Routing Table Report 23:05 GMT Wed 01 Mar, 2023 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: 906789 Prefixes after maximum aggregation (per Origin AS): 345343 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446008 Number of IPv4 prefixes with a valid ROA: 376344 Number of IPv4 prefixes with an invalid ROA: 1635 Number of IPv4 prefixes with no ROA: 528810 Total ASes present in the Internet Routing Table: 73958 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63517 Origin ASes announcing only one prefix: 26079 Transit ASes present in the Internet Routing Table: 10441 Transit-only ASes present in the Internet Routing Table: 443 Paths with bogon ASNs present in the IPv4 Routing Table: 31 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1013 Number of instances of unregistered ASNs: 1029 Number of 32-bit ASNs allocated by the RIRs: 41315 Number of 32-bit ASNs visible in the Routing Table: 34165 Prefixes from 32-bit ASNs in the Routing Table: 167070 Number of bogon 32-bit ASNs visible in the Routing Table: 39 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 521 Number of addresses announced to Internet: 3061955072 Equivalent to 182 /8s, 129 /16s and 186 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305009 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235203 Total APNIC prefixes after maximum aggregation: 68209 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229921 Unique aggregates announced from the APNIC address blocks: 97749 APNIC Region origin ASes present in the Internet Routing Table: 13237 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3848 APNIC Region transit ASes present in the Internet Routing Table: 1775 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8577 Number of APNIC addresses announced to Internet: 773141760 Equivalent to 46 /8s, 21 /16s and 53 /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, 131072-151865 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: 266616 Total ARIN prefixes after maximum aggregation: 121282 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268673 Unique aggregates announced from the ARIN address blocks: 130248 ARIN Region origin ASes present in the Internet Routing Table: 18998 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6966 ARIN Region transit ASes present in the Internet Routing Table: 1894 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4730 Number of ARIN addresses announced to Internet: 1286242304 Equivalent to 76 /8s, 170 /16s and 128 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257234 Total RIPE prefixes after maximum aggregation: 121180 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253568 Unique aggregates announced from the RIPE address blocks: 156620 RIPE Region origin ASes present in the Internet Routing Table: 28218 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12019 RIPE Region transit ASes present in the Internet Routing Table: 3970 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11036 Number of RIPE addresses announced to Internet: 718426624 Equivalent to 42 /8s, 210 /16s and 82 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117423 Total LACNIC prefixes after maximum aggregation: 28218 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116671 Unique aggregates announced from the LACNIC address blocks: 48766 LACNIC Region origin ASes present in the Internet Routing Table: 10952 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2265 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8752 Number of LACNIC addresses announced to Internet: 176251904 Equivalent to 10 /8s, 129 /16s and 100 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29300 Total AfriNIC prefixes after maximum aggregation: 5704 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 37435 Unique aggregates announced from the AfriNIC address blocks: 12215 AfriNIC Region origin ASes present in the Internet Routing Table: 1724 AfriNIC Prefixes per ASN: 21.71 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1070 Number of AfriNIC addresses announced to Internet: 107568128 Equivalent to 6 /8s, 105 /16s and 92 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9456 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5803 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3548 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3372 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2798 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2358 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2305 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8047 10755 2862 AMAZON-02, US 11492 4515 299 632 CABLEONE, US 7155 3958 270 43 VIASAT-SP-BACKBONE, US 22773 3647 3064 288 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3295 1652 2417 AKAMAI-AS, US 749 3031 50571 2298 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24122 1580 ATT-INTERNET4, US 30036 2540 364 393 MEDIACOM-ENTERPRISE-BUSINESS, 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 7062 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4042 3399 167 AKAMAI-ASN1, NL 8551 3898 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2667 253 1385 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11210 3348 584 Uninet S.A. de C.V., MX 10620 3465 504 876 Telmex Colombia S.A., CO 11830 2260 369 64 Instituto Costarricense de Electricidad 13999 2257 368 606 Mega Cable, S.A. de C.V., MX 28573 1340 2324 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 747 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1095 180 454 Techtel LMDS Comunicaciones Interactiva 26615 1027 2498 45 TIM SA, BR 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 1542 533 30 RAYA-AS, EG 24863 1495 393 19 LINKdotNET-AS, EG 36992 1345 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1011 67 53 ORANGE-COTE-IVOIRE, CI 36935 856 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 8151 11210 3348 584 Uninet S.A. de C.V., MX 9808 9456 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8047 10755 2862 AMAZON-02, US 12479 7062 1706 146 UNI2-AS, ES 7545 5803 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4515 299 632 CABLEONE, US 20940 4042 3399 167 AKAMAI-ASN1, NL 7155 3958 270 43 VIASAT-SP-BACKBONE, US 8551 3898 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9456 9408 CHINAMOBILE-CN China Mobile Communications Grou 12479 7062 6916 UNI2-AS, ES 16509 8047 5185 AMAZON-02, US 7545 5803 5112 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3958 3915 VIASAT-SP-BACKBONE, US 11492 4515 3883 CABLEONE, US 20940 4042 3875 AKAMAI-ASN1, NL 8551 3898 3861 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 VIETEL-AS-AP Viettel Group, VN 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2072 /16:13424 /17:8189 /18:13702 /19:24741 /20:42911 /21:50957 /22:108900 /23:96864 /24:542774 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6119 7062 UNI2-AS, ES 8151 5214 11210 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3431 4515 CABLEONE, US 8551 3370 3898 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3035 3958 VIASAT-SP-BACKBONE, US 22773 2697 3647 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2197 2540 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2020 3465 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) ---------------------------------------------- 1:1643 2:1229 3:168 4:5 5:4343 6:116 7:6 8:1516 9:1 11:172 12:1580 13:392 14:2334 15:293 16:111 17:364 18:397 20:249 21:4 22:188 23:6078 24:2487 25:4 27:2525 29:19 31:2508 32:105 34:8 35:104 36:1931 37:4597 38:4231 39:865 40:152 41:4046 42:1063 43:2297 44:305 45:16384 46:4144 47:375 49:1733 50:1824 51:386 52:1589 54:388 55:869 56:8 57:90 58:1668 59:1116 60:984 61:2461 62:2632 63:1941 64:5626 65:2316 66:4907 67:3028 68:1349 69:4128 70:1252 71:661 72:2975 74:2587 75:1457 76:598 77:2409 78:1835 79:3161 80:2059 81:1715 82:1503 83:1234 84:1516 85:3012 86:732 87:1969 88:1231 89:3610 90:610 91:7667 92:1993 93:2574 94:3491 95:3950 96:1327 97:347 98:1163 99:745 100:77 101:1297 102:2652 103:30961 104:4583 105:484 106:903 107:2544 108:927 109:4384 110:2091 111:3281 112:2040 113:1493 114:1619 115:2017 116:1891 117:2561 118:2278 119:1947 120:1742 121:1045 122:2581 123:2137 124:1548 125:2361 128:1260 129:1059 130:989 131:2002 132:819 133:421 134:1905 135:296 136:861 137:940 138:2549 139:1547 140:1186 141:1447 142:1418 143:1480 144:1199 145:354 146:1884 147:1555 148:2284 149:1911 150:871 151:1147 152:1957 153:487 154:4188 155:1426 156:1669 157:1296 158:1015 159:2262 160:2550 161:1442 162:3548 163:1486 164:1585 165:1689 166:847 167:1738 168:3784 169:923 170:4557 171:883 172:3503 173:2962 174:1036 175:1158 176:3718 177:4643 178:3618 179:2203 180:2419 181:3400 182:3391 183:1936 184:2352 185:20088 186:4662 187:3995 188:4117 189:3610 190:9068 191:1469 192:10937 193:8816 194:7226 195:5123 196:3146 197:2383 198:5895 199:6081 200:7685 201:5878 202:10246 203:10140 204:4596 205:3520 206:3781 207:3382 208:4069 209:4837 210:4189 211:2387 212:4081 213:3540 214:1095 215:55 216:6578 217:2642 218:1265 219:409 220:1762 221:971 222:669 223:2117 End of report