IPv4 R&E Routing Table Report 23:05 GMT Thu 02 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: 907499 Prefixes after maximum aggregation (per Origin AS): 345253 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 445988 Number of IPv4 prefixes with a valid ROA: 376748 Number of IPv4 prefixes with an invalid ROA: 1634 Number of IPv4 prefixes with no ROA: 529117 Total ASes present in the Internet Routing Table: 73968 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63522 Origin ASes announcing only one prefix: 26082 Transit ASes present in the Internet Routing Table: 10446 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: 91 Max AS path prepend of ASN (270548) 83 Prefixes from unregistered ASNs in the Routing Table: 1034 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 41326 Number of 32-bit ASNs visible in the Routing Table: 34176 Prefixes from 32-bit ASNs in the Routing Table: 167117 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: 529 Number of addresses announced to Internet: 3061748736 Equivalent to 182 /8s, 126 /16s and 148 /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: 305429 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235278 Total APNIC prefixes after maximum aggregation: 68222 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229986 Unique aggregates announced from the APNIC address blocks: 97761 APNIC Region origin ASes present in the Internet Routing Table: 13238 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3852 APNIC Region transit ASes present in the Internet Routing Table: 1779 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: 8578 Number of APNIC addresses announced to Internet: 773160704 Equivalent to 46 /8s, 21 /16s and 127 /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: 266601 Total ARIN prefixes after maximum aggregation: 121192 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268634 Unique aggregates announced from the ARIN address blocks: 130129 ARIN Region origin ASes present in the Internet Routing Table: 18999 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6974 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: 4728 Number of ARIN addresses announced to Internet: 1285742848 Equivalent to 76 /8s, 162 /16s and 225 /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: 257416 Total RIPE prefixes after maximum aggregation: 121177 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253714 Unique aggregates announced from the RIPE address blocks: 156596 RIPE Region origin ASes present in the Internet Routing Table: 28212 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12009 RIPE Region transit ASes present in the Internet Routing Table: 3963 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: 11035 Number of RIPE addresses announced to Internet: 718438656 Equivalent to 42 /8s, 210 /16s and 129 /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: 117739 Total LACNIC prefixes after maximum aggregation: 28189 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 117057 Unique aggregates announced from the LACNIC address blocks: 48847 LACNIC Region origin ASes present in the Internet Routing Table: 10964 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2270 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 91 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8766 Number of LACNIC addresses announced to Internet: 176499200 Equivalent to 10 /8s, 133 /16s and 42 /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: 29431 Total AfriNIC prefixes after maximum aggregation: 5710 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 37579 Unique aggregates announced from the AfriNIC address blocks: 12235 AfriNIC Region origin ASes present in the Internet Routing Table: 1723 AfriNIC Prefixes per ASN: 21.81 AfriNIC Region origin ASes announcing only one prefix: 593 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1069 Number of AfriNIC addresses announced to Internet: 107580416 Equivalent to 6 /8s, 105 /16s and 140 /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 9455 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5804 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3681 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 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2172 440 217 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 2860 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 3307 1660 2426 AKAMAI-AS, US 749 3031 50571 2298 DNIC-AS-00749, US 396982 2619 3586 355 GOOGLE-CLOUD-PLATFORM, US 7018 2571 24120 1578 ATT-INTERNET4, US 30036 2540 364 392 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 7061 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4046 3399 167 AKAMAI-ASN1, NL 8551 3899 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2660 252 1378 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 11218 3349 584 Uninet S.A. de C.V., MX 10620 3465 504 876 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2262 368 603 Mega Cable, S.A. de C.V., MX 28573 1340 2325 254 Claro NXT Telecomunicacoes Ltda, BR 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 3816 1297 755 160 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1096 180 459 Techtel LMDS Comunicaciones Interactiva 26615 1026 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 24863 1551 393 19 LINKdotNET-AS, EG 24835 1543 533 30 RAYA-AS, EG 36992 1345 1517 276 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1010 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 497 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 11218 3349 584 Uninet S.A. de C.V., MX 9808 9455 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8047 10755 2860 AMAZON-02, US 12479 7061 1706 146 UNI2-AS, ES 7545 5804 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4515 299 632 CABLEONE, US 20940 4046 3399 167 AKAMAI-ASN1, NL 7155 3958 270 43 VIASAT-SP-BACKBONE, US 8551 3899 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 9455 9407 CHINAMOBILE-CN China Mobile Communications Grou 12479 7061 6915 UNI2-AS, ES 16509 8047 5187 AMAZON-02, US 7545 5804 5113 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 4046 3879 AKAMAI-ASN1, NL 8551 3899 3862 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3681 3660 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 /15:2073 /16:13421 /17:8189 /18:13706 /19:24778 /20:42928 /21:50978 /22:109002 /23:96875 /24:543294 /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 6118 7061 UNI2-AS, ES 8151 5219 11218 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3431 4515 CABLEONE, US 8551 3371 3899 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) ---------------------------------------------- 1:1642 2:1231 3:168 4:5 5:4347 6:116 7:6 8:1518 9:1 11:172 12:1582 13:392 14:2333 15:293 16:111 17:364 18:397 20:249 21:4 22:188 23:6085 24:2474 25:4 27:2523 29:19 31:2510 32:107 34:8 35:104 36:1931 37:4603 38:4258 39:865 40:152 41:4053 42:1081 43:2304 44:305 45:16383 46:4153 47:372 49:1732 50:1822 51:386 52:1586 54:388 55:869 56:8 57:91 58:1671 59:1115 60:983 61:2461 62:2634 63:1940 64:5628 65:2314 66:4908 67:3020 68:1351 69:4128 70:1268 71:663 72:2971 74:2589 75:1456 76:600 77:2411 78:1836 79:3171 80:2070 81:1724 82:1505 83:1232 84:1515 85:3012 86:756 87:1955 88:1231 89:3614 90:610 91:7668 92:2015 93:2576 94:3506 95:3951 96:1327 97:332 98:1163 99:746 100:77 101:1295 102:2659 103:30966 104:4570 105:484 106:904 107:2543 108:922 109:4384 110:2090 111:3273 112:2039 113:1493 114:1619 115:2017 116:1893 117:2562 118:2278 119:1951 120:1741 121:1046 122:2581 123:2139 124:1544 125:2362 128:1272 129:1056 130:986 131:2000 132:818 133:421 134:1908 135:296 136:861 137:936 138:2566 139:1544 140:1192 141:1457 142:1407 143:1482 144:1204 145:354 146:1883 147:1525 148:2283 149:1919 150:918 151:1147 152:1957 153:487 154:4207 155:1427 156:1668 157:1298 158:1014 159:2264 160:2567 161:1441 162:3551 163:1486 164:1585 165:1687 166:842 167:1738 168:3783 169:924 170:4580 171:883 172:3501 173:2960 174:1011 175:1160 176:3725 177:4724 178:3613 179:2198 180:2423 181:3409 182:3391 183:1936 184:2348 185:20083 186:4717 187:4032 188:4117 189:3642 190:9097 191:1498 192:10940 193:8803 194:7232 195:5110 196:3151 197:2396 198:5877 199:6081 200:7684 201:5889 202:10273 203:10152 204:4591 205:3521 206:3776 207:3370 208:4066 209:4837 210:4187 211:2385 212:4093 213:3545 214:1097 215:55 216:6576 217:2648 218:1265 219:410 220:1764 221:971 222:669 223:2118 End of report