This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 23 Aug, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1018333 Prefixes after maximum aggregation (per Origin AS): 387835 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 492291 Number of IPv4 prefixes with a valid ROA: 573742 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 444571 Total ASes present in the Internet Routing Table: 77363 Prefixes per ASN: 13.16 Origin-only ASes present in the Internet Routing Table: 66198 Origin ASes announcing only one prefix: 26963 Transit ASes present in the Internet Routing Table: 11165 Transit-only ASes present in the Internet Routing Table: 565 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 1034 Number of instances of unregistered ASNs: 1063 Number of 32-bit ASNs allocated by the RIRs: 47254 Number of 32-bit ASNs visible in the Routing Table: 38890 Prefixes from 32-bit ASNs in the Routing Table: 211678 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 296 Number of addresses announced to Internet: 3112337476 Equivalent to 185 /8s, 130 /16s and 128 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 330048 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277747 Total APNIC prefixes after maximum aggregation: 79675 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 268417 Unique aggregates announced from the APNIC address blocks: 105585 APNIC Region origin ASes present in the Internet Routing Table: 14890 APNIC Prefixes per ASN: 18.03 APNIC Region origin ASes announcing only one prefix: 4522 APNIC Region transit ASes present in the Internet Routing Table: 2011 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10357 Number of APNIC addresses announced to Internet: 755400512 Equivalent to 45 /8s, 6 /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, 131072-155961 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: 295612 Total ARIN prefixes after maximum aggregation: 133211 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 297000 Unique aggregates announced from the ARIN address blocks: 142138 ARIN Region origin ASes present in the Internet Routing Table: 19285 ARIN Prefixes per ASN: 15.40 ARIN Region origin ASes announcing only one prefix: 7048 ARIN Region transit ASes present in the Internet Routing Table: 1995 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5298 Number of ARIN addresses announced to Internet: 1348967937 Equivalent to 80 /8s, 103 /16s and 158 /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: 282051 Total RIPE prefixes after maximum aggregation: 137304 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 281335 Unique aggregates announced from the RIPE address blocks: 179198 RIPE Region origin ASes present in the Internet Routing Table: 29057 RIPE Prefixes per ASN: 9.68 RIPE Region origin ASes announcing only one prefix: 12074 RIPE Region transit ASes present in the Internet Routing Table: 4022 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12678 Number of RIPE addresses announced to Internet: 732446147 Equivalent to 43 /8s, 168 /16s and 61 /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: 126118 Total LACNIC prefixes after maximum aggregation: 30156 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 122257 Unique aggregates announced from the LACNIC address blocks: 49379 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.84 LACNIC Region origin ASes announcing only one prefix: 2628 LACNIC Region transit ASes present in the Internet Routing Table: 2544 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9242 Number of LACNIC addresses announced to Internet: 170783808 Equivalent to 10 /8s, 45 /16s and 244 /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: 35771 Total AfriNIC prefixes after maximum aggregation: 6801 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 49028 Unique aggregates announced from the AfriNIC address blocks: 15722 AfriNIC Region origin ASes present in the Internet Routing Table: 1949 AfriNIC Prefixes per ASN: 25.16 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 390 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1315 Number of AfriNIC addresses announced to Internet: 104547584 Equivalent to 6 /8s, 59 /16s and 69 /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 13075 8921 172 CHINAMOBILE-CN China Mobile Communication 7545 6128 837 607 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4876 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4394 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3968 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3659 1043 70 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3126 833 228 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13992 40851 5380 AMAZON-02, US 174 5042 8759 846 COGENT-174, US 11492 4742 314 779 CABLEONE, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3649 1320 82 SHAW, CA 22773 3331 3014 157 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3216 3857 434 GOOGLE-CLOUD-PLATFORM, US 4155 2939 229 1740 USDA-1, US 16625 2925 1239 2174 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7539 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3938 3396 140 AKAMAI-ASN1, NL 9009 3869 366 2189 M247, RO 12389 3114 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 585 TELLCOM-AS, TR 5384 2391 585 29 EMIRATES-INTERNET Emirates Internet, AE 212238 2335 166 1703 CDNEXT, GB 203020 1799 220 826 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12280 3270 571 UNINET, MX 10620 3483 472 1054 Telmex Colombia S.A., CO 13999 2526 511 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1371 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1214 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1020 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 991 523 46 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 571 82 3 KENET-AS, KE 15399 544 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13992 40851 5380 AMAZON-02, US 9808 13075 8921 172 CHINAMOBILE-CN China Mobile Communication 8151 12280 3270 571 UNINET, MX 12479 7539 1711 150 UNI2-AS, ES 7545 6128 837 607 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5042 8759 846 COGENT-174, US 4538 4876 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13075 12903 CHINAMOBILE-CN China Mobile Communications Grou 8151 12280 11709 UNINET, MX 12479 7539 7389 UNI2-AS, ES 7545 6128 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4876 4801 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4446 4420 FPT-AS-AP FPT Telecom Company, VN 45899 4394 4339 VNPT-AS-VN VNPT Corp, VN 174 5042 4196 COGENT-174, US 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:92 /12:299 /13:581 /14:1213 /15:2169 /16:13886 /17:8447 /18:14283 /19:25396 /20:45988 /21:53315 /22:114184 /23:106473 /24:631157 /25:145 /26:112 /27:116 /28:21 /29:66 /30:7 /31:0 /32:312 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6500 7539 UNI2-AS, ES 8151 6488 12280 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3649 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2492 3331 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 13992 AMAZON-02, US 30036 2315 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2484 2:1603 3:922 4:12 5:4911 6:158 7:6 8:1577 9:3 11:172 12:1256 13:482 14:2663 15:383 16:285 17:384 18:902 20:580 21:4 22:188 23:7846 24:2710 25:2 27:2881 29:19 31:3466 32:33 33:1 34:85 35:260 36:4311 37:4610 38:10377 39:993 40:264 41:4373 42:1997 43:2836 44:385 45:19080 46:5216 47:355 49:2003 50:2063 51:591 52:1561 54:332 55:1112 56:11 57:291 58:2359 59:1402 60:1206 61:3145 62:3055 63:1789 64:5625 65:2151 66:4841 67:3105 68:1068 69:3985 70:1031 71:638 72:2856 74:2827 75:1514 76:602 77:2779 78:1898 79:1753 80:2267 81:2103 82:3262 83:1497 84:1929 85:3485 86:1223 87:2408 88:1322 89:4520 90:777 91:8466 92:2822 93:2987 94:4273 95:4456 96:1485 97:311 98:954 99:711 100:70 101:1495 102:4116 103:32800 104:5284 105:1032 106:881 107:2650 108:1269 109:4269 110:2292 111:3655 112:2502 113:1930 114:2001 115:2290 116:2167 117:2745 118:3068 119:2049 120:2268 121:1413 122:2949 123:2519 124:1799 125:2940 126:91 128:1633 129:978 130:1317 131:2089 132:776 133:460 134:1625 135:358 136:1484 137:1259 138:2880 139:1674 140:1638 141:1538 142:1914 143:2002 144:1215 145:587 146:2197 147:2110 148:2719 149:3074 150:1272 151:2382 152:2116 153:624 154:7718 155:1924 156:3305 157:1954 158:1381 159:2543 160:3620 161:1926 162:3909 163:2291 164:1895 165:2502 166:1555 167:2072 168:3934 169:773 170:5286 171:1011 172:4255 173:3420 174:904 175:1353 176:3808 177:4914 178:4019 179:2381 180:2670 181:4199 182:3640 183:2364 184:2095 185:21724 186:5377 187:4676 188:4332 189:4400 190:9472 191:1587 192:11395 193:9501 194:7958 195:5787 196:3309 197:3226 198:6140 199:8615 200:8283 201:6433 202:11003 203:10943 204:4580 205:3639 206:4573 207:3553 208:4313 209:5162 210:5072 211:2876 212:4674 213:3852 214:1039 215:51 216:6812 217:3450 218:1506 219:603 220:2150 221:1213 222:994 223:2872 End of report