IPv4 R&E Routing Table Report 23:05 GMT Tue 28 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: 908806 Prefixes after maximum aggregation (per Origin AS): 346061 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447320 Number of IPv4 prefixes with a valid ROA: 381454 Number of IPv4 prefixes with an invalid ROA: 1638 Number of IPv4 prefixes with no ROA: 525714 Total ASes present in the Internet Routing Table: 74083 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63634 Origin ASes announcing only one prefix: 26149 Transit ASes present in the Internet Routing Table: 10449 Transit-only ASes present in the Internet Routing Table: 438 Paths with bogon ASNs present in the IPv4 Routing Table: 54 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: 1096 Number of instances of unregistered ASNs: 1100 Number of 32-bit ASNs allocated by the RIRs: 41534 Number of 32-bit ASNs visible in the Routing Table: 34329 Prefixes from 32-bit ASNs in the Routing Table: 168418 Number of bogon 32-bit ASNs visible in the Routing Table: 69 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 533 Number of addresses announced to Internet: 3061126144 Equivalent to 182 /8s, 117 /16s and 20 /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: 305532 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236091 Total APNIC prefixes after maximum aggregation: 68313 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230788 Unique aggregates announced from the APNIC address blocks: 97935 APNIC Region origin ASes present in the Internet Routing Table: 13299 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3896 APNIC Region transit ASes present in the Internet Routing Table: 1788 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8648 Number of APNIC addresses announced to Internet: 773109248 Equivalent to 46 /8s, 20 /16s and 182 /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: 267074 Total ARIN prefixes after maximum aggregation: 121364 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269358 Unique aggregates announced from the ARIN address blocks: 130272 ARIN Region origin ASes present in the Internet Routing Table: 19015 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6976 ARIN Region transit ASes present in the Internet Routing Table: 1884 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4751 Number of ARIN addresses announced to Internet: 1285272320 Equivalent to 76 /8s, 155 /16s and 179 /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: 258232 Total RIPE prefixes after maximum aggregation: 121611 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254498 Unique aggregates announced from the RIPE address blocks: 157297 RIPE Region origin ASes present in the Internet Routing Table: 28270 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12035 RIPE Region transit ASes present in the Internet Routing Table: 3977 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11096 Number of RIPE addresses announced to Internet: 718148608 Equivalent to 42 /8s, 206 /16s and 20 /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: 117253 Total LACNIC prefixes after maximum aggregation: 28146 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116572 Unique aggregates announced from the LACNIC address blocks: 49051 LACNIC Region origin ASes present in the Internet Routing Table: 10951 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2645 LACNIC Region transit ASes present in the Internet Routing Table: 2280 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8758 Number of LACNIC addresses announced to Internet: 176512768 Equivalent to 10 /8s, 133 /16s and 95 /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: 29060 Total AfriNIC prefixes after maximum aggregation: 5847 AfriNIC Deaggregation factor: 4.97 Prefixes being announced from the AfriNIC address blocks: 37057 Unique aggregates announced from the AfriNIC address blocks: 12365 AfriNIC Region origin ASes present in the Internet Routing Table: 1728 AfriNIC Prefixes per ASN: 21.45 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 332 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: 1076 Number of AfriNIC addresses announced to Internet: 107700224 Equivalent to 6 /8s, 107 /16s and 96 /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 9502 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5753 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3381 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2868 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2169 439 213 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 8128 10765 2908 AMAZON-02, US 11492 4534 300 620 CABLEONE, US 7155 3963 279 46 VIASAT-SP-BACKBONE, US 22773 3617 3063 292 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3145 1578 2334 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2625 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2572 24118 1579 ATT-INTERNET4, US 30036 2499 360 505 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 7185 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4044 3399 163 AKAMAI-ASN1, NL 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2672 253 1396 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2114 339 19 UKRTELNET, UA 58224 1850 950 543 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 11171 3342 583 Uninet S.A. de C.V., MX 10620 3499 506 850 Telmex Colombia S.A., CO 13999 2302 367 612 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1329 2324 245 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1131 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 456 Techtel LMDS Comunicaciones Interactiva 26615 1030 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 1511 465 27 RAYA-AS, EG 24863 1398 381 95 LINKdotNET-AS, EG 36992 1314 1513 269 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1017 67 48 ORANGE-COTE-IVOIRE, CI 36935 742 519 35 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 487 73 5 EthioNet-AS, ET 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 11171 3342 583 Uninet S.A. de C.V., MX 9808 9502 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8128 10765 2908 AMAZON-02, US 12479 7185 1705 149 UNI2-AS, ES 7545 5753 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4534 300 620 CABLEONE, US 20940 4044 3399 163 AKAMAI-ASN1, NL 7155 3963 279 46 VIASAT-SP-BACKBONE, US 8551 3887 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 9502 9454 CHINAMOBILE-CN China Mobile Communications Grou 12479 7185 7036 UNI2-AS, ES 16509 8128 5220 AMAZON-02, US 7545 5753 5063 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3963 3917 VIASAT-SP-BACKBONE, US 11492 4534 3914 CABLEONE, US 20940 4044 3881 AKAMAI-ASN1, NL 8551 3887 3850 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 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 /13:575 /14:1196 /15:2073 /16:13427 /17:8178 /18:13702 /19:24813 /20:43005 /21:51068 /22:108531 /23:97193 /24:544567 /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 6247 7185 UNI2-AS, ES 8151 5134 11171 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3442 4534 CABLEONE, US 8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3038 3963 VIASAT-SP-BACKBONE, US 22773 2677 3617 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2156 2499 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2053 3499 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) ---------------------------------------------- 1:1671 2:1222 3:170 4:5 5:4457 6:122 7:6 8:1513 9:1 11:172 12:1577 13:392 14:2307 15:296 16:136 17:368 18:403 20:248 21:4 22:188 23:6139 24:2559 25:6 27:2499 29:19 31:2514 32:95 34:10 35:104 36:1925 37:4649 38:4396 39:805 40:151 41:3974 42:975 43:2304 44:310 45:16471 46:4225 47:369 49:1735 50:1823 51:570 52:1586 54:388 55:766 56:8 57:90 58:1683 59:1078 60:978 61:2464 62:2644 63:1929 64:5660 65:2311 66:4907 67:3010 68:1369 69:4148 70:1249 71:670 72:2969 74:2590 75:1463 76:608 77:2420 78:1843 79:3165 80:2089 81:1729 82:1496 83:1268 84:1509 85:3000 86:750 87:1969 88:1228 89:3612 90:615 91:7674 92:2037 93:2565 94:3588 95:3966 96:1328 97:336 98:1158 99:746 100:73 101:1297 102:2665 103:31136 104:4588 105:463 106:897 107:2555 108:983 109:4398 110:2078 111:3193 112:2054 113:1492 114:1622 115:2015 116:1904 117:2552 118:2285 119:1971 120:1749 121:1048 122:2593 123:2137 124:1577 125:2449 128:1257 129:1056 130:992 131:1987 132:829 133:423 134:1894 135:300 136:861 137:936 138:2552 139:1522 140:1218 141:1451 142:1431 143:1491 144:1164 145:356 146:1926 147:1564 148:2311 149:1954 150:867 151:1150 152:1955 153:488 154:4256 155:1414 156:1691 157:1290 158:1043 159:2269 160:2537 161:1514 162:3525 163:1497 164:1587 165:1697 166:887 167:1728 168:3856 169:931 170:4597 171:880 172:3535 173:2932 174:1013 175:1159 176:3673 177:4608 178:3623 179:2153 180:2433 181:3427 182:3327 183:1935 184:2347 185:20127 186:4653 187:3921 188:4061 189:3575 190:9118 191:1445 192:10918 193:8831 194:7281 195:5146 196:3170 197:2380 198:5881 199:6075 200:7751 201:5855 202:10333 203:10180 204:4619 205:3524 206:3876 207:3389 208:4061 209:4859 210:4174 211:2403 212:4114 213:3517 214:1084 215:60 216:6617 217:2671 218:1270 219:411 220:1759 221:974 222:727 223:2140 End of report