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 27 Sep, 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: 1034931 Prefixes after maximum aggregation (per Origin AS): 390533 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 495987 Number of IPv4 prefixes with a valid ROA: 590054 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 444859 Total ASes present in the Internet Routing Table: 77499 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 66311 Origin ASes announcing only one prefix: 26864 Transit ASes present in the Internet Routing Table: 11188 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 986 Number of instances of unregistered ASNs: 1015 Number of 32-bit ASNs allocated by the RIRs: 47563 Number of 32-bit ASNs visible in the Routing Table: 39079 Prefixes from 32-bit ASNs in the Routing Table: 217970 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: 299 Number of addresses announced to Internet: 3117266881 Equivalent to 185 /8s, 205 /16s and 183 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 336416 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283439 Total APNIC prefixes after maximum aggregation: 80466 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 273573 Unique aggregates announced from the APNIC address blocks: 106252 APNIC Region origin ASes present in the Internet Routing Table: 14913 APNIC Prefixes per ASN: 18.34 APNIC Region origin ASes announcing only one prefix: 4492 APNIC Region transit ASes present in the Internet Routing Table: 2015 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 42 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10402 Number of APNIC addresses announced to Internet: 756689984 Equivalent to 45 /8s, 26 /16s and 44 /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: 298120 Total ARIN prefixes after maximum aggregation: 133881 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 299108 Unique aggregates announced from the ARIN address blocks: 142974 ARIN Region origin ASes present in the Internet Routing Table: 19320 ARIN Prefixes per ASN: 15.48 ARIN Region origin ASes announcing only one prefix: 7085 ARIN Region transit ASes present in the Internet Routing Table: 1994 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5341 Number of ARIN addresses announced to Internet: 1352662272 Equivalent to 80 /8s, 159 /16s and 253 /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: 284413 Total RIPE prefixes after maximum aggregation: 138331 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 284075 Unique aggregates announced from the RIPE address blocks: 180506 RIPE Region origin ASes present in the Internet Routing Table: 29103 RIPE Prefixes per ASN: 9.76 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 4053 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12746 Number of RIPE addresses announced to Internet: 733029505 Equivalent to 43 /8s, 177 /16s and 36 /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: 131800 Total LACNIC prefixes after maximum aggregation: 30254 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 127887 Unique aggregates announced from the LACNIC address blocks: 49434 LACNIC Region origin ASes present in the Internet Routing Table: 11300 LACNIC Prefixes per ASN: 11.32 LACNIC Region origin ASes announcing only one prefix: 2507 LACNIC Region transit ASes present in the Internet Routing Table: 2527 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9263 Number of LACNIC addresses announced to Internet: 170717952 Equivalent to 10 /8s, 44 /16s and 243 /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: 36173 Total AfriNIC prefixes after maximum aggregation: 6927 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 49989 Unique aggregates announced from the AfriNIC address blocks: 16547 AfriNIC Region origin ASes present in the Internet Routing Table: 1964 AfriNIC Prefixes per ASN: 25.45 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1327 Number of AfriNIC addresses announced to Internet: 103977216 Equivalent to 6 /8s, 50 /16s and 145 /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 13820 8889 171 CHINAMOBILE-CN China Mobile Communication 7545 6152 834 594 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4878 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4477 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4472 536 312 BBIL-AP BHARTI Airtel Ltd., IN 45899 4398 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3979 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3720 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3260 848 229 CMNET-JIANGSU-AP China Mobile communicati 24560 2923 862 504 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 14363 40906 5401 AMAZON-02, US 174 5036 8773 820 COGENT-174, US 11492 4746 320 804 CABLEONE, US 22773 3951 3045 310 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3677 1320 81 SHAW, CA 396982 3268 4823 458 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3065 237 1699 USDA-1, US 16625 2932 1250 2181 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 7450 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3942 3395 139 AKAMAI-ASN1, NL 9009 3925 368 2206 M247, RO 12389 3122 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2444 173 1768 CDNEXT, GB 34984 2412 363 573 TELLCOM-AS, TR 5384 2397 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 1863 198 872 HOSTROYALE, IN 8452 1622 1852 14 TE-AS TE-AS, EG 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 12364 3278 573 UNINET, MX 10620 3503 474 1047 Telmex Colombia S.A., CO 13999 2542 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1577 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1226 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1061 68 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2486 56 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 1846 652 28 RAYA-AS, EG 36992 1509 1498 384 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1246 389 20 LINKdotNET-AS, EG 29571 1185 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1077 522 45 Vodafone-, EG 20011 634 172 254 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 3741 564 725 319 NTT-DATA-Inc, ZA 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 14363 40906 5401 AMAZON-02, US 9808 13820 8889 171 CHINAMOBILE-CN China Mobile Communication 8151 12364 3278 573 UNINET, MX 12479 7450 1711 149 UNI2-AS, ES 7545 6152 834 594 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5036 8773 820 COGENT-174, US 4538 4878 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4746 320 804 CABLEONE, US 18403 4477 347 26 FPT-AS-AP FPT Telecom Company, VN 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 13820 13649 CHINAMOBILE-CN China Mobile Communications Grou 8151 12364 11791 UNINET, MX 12479 7450 7301 UNI2-AS, ES 7545 6152 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4878 4803 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4477 4451 FPT-AS-AP FPT Telecom Company, VN 45899 4398 4343 VNPT-AS-VN VNPT Corp, VN 174 5036 4216 COGENT-174, US 9498 4472 4160 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 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 /11:93 /12:302 /13:585 /14:1213 /15:2163 /16:13919 /17:8445 /18:14260 /19:25714 /20:46385 /21:53629 /22:115115 /23:108897 /24:643382 /25:144 /26:107 /27:114 /28:21 /29:63 /30:11 /31:0 /32:298 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6583 12364 UNINET, MX 12479 6423 7450 UNI2-AS, ES 11492 3560 4746 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3466 3677 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2513 3951 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2442 14363 AMAZON-02, US 30036 2295 2637 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2221 3503 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) ---------------------------------------------- 1:2495 2:1622 3:943 4:12 5:4952 6:170 7:6 8:1566 9:6 11:172 12:1245 13:554 14:2702 15:401 16:303 17:392 18:908 20:589 21:4 22:188 23:7893 24:2714 25:2 27:2876 29:19 31:3480 32:35 33:1 34:85 35:271 36:4471 37:4614 38:10615 39:1100 40:293 41:4449 42:2002 43:2923 44:382 45:19892 46:5248 47:388 49:2178 50:2044 51:593 52:1606 54:362 55:1040 56:11 57:290 58:2395 59:1431 60:1218 61:3201 62:3104 63:1774 64:5652 65:2145 66:4949 67:3106 68:1090 69:4011 70:1033 71:639 72:2879 74:2842 75:1503 76:601 77:2775 78:1902 79:1777 80:2273 81:2120 82:3439 83:1514 84:1989 85:3515 86:1190 87:2409 88:1334 89:4676 90:814 91:8456 92:2853 93:3000 94:4335 95:4587 96:1515 97:312 98:953 99:764 100:71 101:1497 102:4355 103:33302 104:5367 105:1040 106:898 107:2657 108:1216 109:4269 110:2292 111:3850 112:2686 113:1917 114:2017 115:2403 116:2175 117:2980 118:3102 119:2087 120:2343 121:1436 122:2971 123:2596 124:1826 125:2936 126:91 128:1630 129:982 130:1287 131:2242 132:792 133:461 134:1611 135:366 136:1497 137:1271 138:3013 139:1694 140:1660 141:1558 142:1910 143:2069 144:1280 145:626 146:2192 147:2132 148:2726 149:2977 150:1280 151:2544 152:2388 153:642 154:7783 155:2056 156:3521 157:2066 158:1407 159:2594 160:3601 161:1990 162:3953 163:2322 164:1971 165:2586 166:1560 167:2109 168:3956 169:788 170:5564 171:1027 172:4253 173:3413 174:902 175:1383 176:3866 177:5481 178:4343 179:2571 180:2735 181:4286 182:3764 183:2648 184:2089 185:21796 186:5685 187:5008 188:4385 189:4578 190:9852 191:1720 192:11457 193:9495 194:7951 195:5784 196:3329 197:3364 198:6139 199:8731 200:8408 201:6542 202:11070 203:10962 204:4564 205:3618 206:4610 207:3587 208:4306 209:5343 210:5146 211:2908 212:4825 213:3904 214:1037 215:52 216:6961 217:3480 218:1632 219:616 220:2200 221:1269 222:1005 223:3083 End of report