[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat May 31 20:16:31 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 31 May, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 264830
Prefixes after maximum aggregation (per Origin AS): 116133
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135694
Number of IPv4 prefixes with a valid ROA: 119432
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 145356
Total ASes present in the Internet Routing Table: 19986
Prefixes per ASN: 13.25
Origin-only ASes present in the Internet Routing Table: 17246
Origin ASes announcing only one prefix: 7808
Transit ASes present in the Internet Routing Table: 2740
Transit-only ASes present in the Internet Routing Table: 722
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 320
Number of instances of unregistered ASNs: 324
Number of 32-bit ASNs allocated by the RIRs: 46546
Number of 32-bit ASNs visible in the Routing Table: 7669
Prefixes from 32-bit ASNs in the Routing Table: 28633
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 1557123037
Equivalent to 92 /8s, 207 /16s and 207 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83337
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32645
Total APNIC prefixes after maximum aggregation: 7474
APNIC Deaggregation factor: 4.37
Prefixes being announced from the APNIC address blocks: 31046
Unique aggregates announced from the APNIC address blocks: 7523
APNIC Region origin ASes present in the Internet Routing Table: 1218
APNIC Prefixes per ASN: 25.49
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 202
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 562
Number of APNIC addresses announced to Internet: 166521708
Equivalent to 9 /8s, 236 /16s and 235 /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: 125896
Total ARIN prefixes after maximum aggregation: 65932
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 123009
Unique aggregates announced from the ARIN address blocks: 66160
ARIN Region origin ASes present in the Internet Routing Table: 9347
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3907
ARIN Region transit ASes present in the Internet Routing Table: 861
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2194
Number of ARIN addresses announced to Internet: 960488161
Equivalent to 57 /8s, 63 /16s and 226 /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: 49461
Total RIPE prefixes after maximum aggregation: 26527
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51325
Unique aggregates announced from the RIPE address blocks: 37295
RIPE Region origin ASes present in the Internet Routing Table: 4615
RIPE Prefixes per ASN: 11.12
RIPE Region origin ASes announcing only one prefix: 1948
RIPE Region transit ASes present in the Internet Routing Table: 696
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1898
Number of RIPE addresses announced to Internet: 285617488
Equivalent to 17 /8s, 6 /16s and 45 /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: 45357
Total LACNIC prefixes after maximum aggregation: 13604
LACNIC Deaggregation factor: 3.33
Prefixes being announced from the LACNIC address blocks: 44489
Unique aggregates announced from the LACNIC address blocks: 20263
LACNIC Region origin ASes present in the Internet Routing Table: 3669
LACNIC Prefixes per ASN: 12.13
LACNIC Region origin ASes announcing only one prefix: 1362
LACNIC Region transit ASes present in the Internet Routing Table: 766
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2862
Number of LACNIC addresses announced to Internet: 97443136
Equivalent to 5 /8s, 206 /16s and 221 /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: 11151
Total AfriNIC prefixes after maximum aggregation: 2382
AfriNIC Deaggregation factor: 4.68
Prefixes being announced from the AfriNIC address blocks: 14851
Unique aggregates announced from the AfriNIC address blocks: 4344
AfriNIC Region origin ASes present in the Internet Routing Table: 287
AfriNIC Prefixes per ASN: 51.75
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153
Number of AfriNIC addresses announced to Internet: 47008000
Equivalent to 2 /8s, 205 /16s and 73 /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 10879 8756 96 CHINAMOBILE-CN China Mobile Communication
56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1633 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 846 54 389 LCS-AS-AP LARUS Limited, HK
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 605 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 517 848 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13585 40828 5184 AMAZON-02, US
22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2768 210 1700 USDA-1, US
36352 2557 210 1124 AS-COLOCROSSING, US
367 2442 2912 1176 DNIC-ASBLK-00306-00371, US
7018 2072 22882 1525 ATT-INTERNET4, US
11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1887 3867 499 CELLCO-PART, US
209 1660 4889 271 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1176 92 961 AKAMAI-ASN1, NL
3257 958 2078 772 GTT-BACKBONE GTT, US
3215 894 4818 289 France Telecom - Orange, FR
25019 818 1301 129 SAUDINETSTC-AS, SA
8452 781 1841 16 TE-AS TE-AS, EG
34984 676 74 406 TELLCOM-AS, TR
203214 643 47 386 HULUMTELE, IQ
212238 640 47 566 CDNEXT, GB
8376 577 53 21 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7419 1989 968 UNINET, MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
10620 1901 280 1293 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1199 371 22 Telefonica del Peru S.A.A., PE
26615 1036 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1479 389 16 LINKdotNET-AS, EG
29571 1136 100 74 ORANGE-COTE-IVOIRE, CI
24835 1053 535 35 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36935 597 128 165 Vodafone-, EG
36914 552 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 448 202 331 MT-MPLS, MA
2018 372 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13585 40828 5184 AMAZON-02, US
9808 10879 8756 96 CHINAMOBILE-CN China Mobile Communication
8151 7419 1989 968 UNINET, MX
22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2768 210 1700 USDA-1, US
36352 2557 210 1124 AS-COLOCROSSING, US
367 2442 2912 1176 DNIC-ASBLK-00306-00371, US
7018 2072 22882 1525 ATT-INTERNET4, US
11830 1990 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10879 10783 CHINAMOBILE-CN China Mobile Communications Grou
8151 7419 6451 UNINET, MX
22773 3345 3179 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co
11776 1900 1689 ATLANTICBB-JOHNSTOWN, US
56041 1633 1543 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1479 1463 LINKdotNET-AS, EG
36352 2557 1433 AS-COLOCROSSING, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:30 /11:41 /12:150
/13:209 /14:573 /15:1100 /16:7632 /17:3434 /18:4210
/19:7617 /20:12472 /21:15265 /22:27617 /23:28102 /24:156132
/25:62 /26:82 /27:34 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3985 7419 UNINET, MX
22773 2496 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2372 13585 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1901 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1033 2557 AS-COLOCROSSING, US
19901 982 1273 BRSPD-PUBLIC, US
209 963 1660 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1900 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:474 3:798 4:5 5:789 6:155
7:5 8:675 11:171 12:1006 13:389 14:115
15:306 16:247 17:6 18:889 20:185 21:4
22:188 23:2562 24:641 27:22 29:19 31:518
32:9 33:1 34:10 35:142 36:1830 37:1051
38:1938 39:552 40:62 41:1003 42:21 43:212
44:36 45:3710 46:945 47:93 49:20 50:357
51:387 52:1398 54:317 55:1097 56:11 57:19
58:16 59:31 60:16 61:74 62:533 63:754
64:1945 65:1088 66:1534 67:961 68:397 69:1113
70:417 71:199 72:724 74:936 75:320 76:247
77:484 78:355 79:238 80:311 81:379 82:716
83:232 84:336 85:431 86:235 87:206 88:290
89:852 90:104 91:923 92:633 93:486 94:922
95:744 96:290 97:53 98:455 99:182 100:35
101:18 102:358 103:1229 104:1641 105:214 106:3
107:1527 108:552 109:396 110:36 111:1919 112:499
113:39 114:40 115:24 116:63 117:1042 118:62
119:89 120:1265 121:44 122:66 123:76 124:57
125:25 128:497 129:397 130:690 131:954 132:564
133:211 134:495 135:112 136:608 137:508 138:911
139:430 140:699 141:461 142:1025 143:698 144:439
145:136 146:676 147:516 148:869 149:784 150:351
151:635 152:474 153:129 154:1680 155:862 156:1385
157:394 158:516 159:734 160:869 161:636 162:1009
163:427 164:718 165:776 166:790 167:652 168:1124
169:159 170:1553 171:123 172:1369 173:799 174:252
175:62 176:775 177:858 178:502 179:709 180:45
181:1825 182:29 183:966 184:452 185:3500 186:2101
187:1462 188:835 189:1763 190:4191 191:456 192:5169
193:1870 194:1218 195:924 196:691 197:1572 198:2738
199:4931 200:3661 201:3289 202:1002 203:740 204:2164
205:1947 206:1549 207:1526 208:1423 209:1904 210:297
211:422 212:1029 213:778 214:979 215:42 216:2545
217:423 218:525 219:18 220:28 221:360 222:31
223:820
End of report
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