Routing Table Report 00:00 GMT Thu 17 Nov, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 385488
Prefixes after maximum aggregation: 168100
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187791
Total ASes present in the Internet Routing Table: 39337
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32570
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5118
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5534
Unregistered ASNs in the Routing Table: 906
Number of 32-bit ASNs allocated by the RIRs: 1958
Number of 32-bit ASNs visible in the Routing Table: 1649
Prefixes from 32-bit ASNs in the Routing Table: 3796
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2491319587
Equivalent to 148 /8s, 126 /16s and 133 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161790
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93098
Total APNIC prefixes after maximum aggregation: 30025
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89562
Unique aggregates announced from the APNIC address blocks: 38322
APNIC Region origin ASes present in the Internet Routing Table: 4591
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1280
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630101248
Equivalent to 37 /8s, 142 /16s and 149 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148675
Total ARIN prefixes after maximum aggregation: 76643
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120559
Unique aggregates announced from the ARIN address blocks: 48544
ARIN Region origin ASes present in the Internet Routing Table: 14747
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1503
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 803261448
Equivalent to 47 /8s, 224 /16s and 204 /24s
Percentage of available ARIN address space announced: 63.8
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 94294
Total RIPE prefixes after maximum aggregation: 51333
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85654
Unique aggregates announced from the RIPE address blocks: 54463
RIPE Region origin ASes present in the Internet Routing Table: 16137
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2476
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 20
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1148
Number of RIPE addresses announced to Internet: 492500428
Equivalent to 29 /8s, 90 /16s and 245 /24s
Percentage of available RIPE address space announced: 79.3
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36841
Total LACNIC prefixes after maximum aggregation: 7963
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36220
Unique aggregates announced from the LACNIC address blocks: 18639
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.41
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 374
Number of LACNIC addresses announced to Internet: 93105928
Equivalent to 5 /8s, 140 /16s and 175 /24s
Percentage of available LACNIC address space announced: 61.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8622
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6687
Unique aggregates announced from the AfriNIC address blocks: 2047
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27757824
Equivalent to 1 /8s, 167 /16s and 141 /24s
Percentage of available AfriNIC address space announced: 41.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1954 11106 667 Korea Telecom (KIX)
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1525 378 168 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1094 80 494 Sify Limited
4808 974 1950 273 CNCGROUP IP network: China169
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3526 3814 225 bellsouth.net, inc.
7029 2958 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 122 AppliedTheory Corporation
4323 1614 1093 388 Time Warner Telecom
20115 1595 1545 625 Charter Communications
22773 1498 2909 103 Cox Communications, Inc.
30036 1422 256 667 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1314 7062 863 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1503 416 14 Corbina telecom
286 1086 810 198 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 600 112 188 Tellcom Iletisim Hizmetleri
20940 560 185 439 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 410 TDC Tele Danmark
3320 511 8168 388 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1706 316 157 TVCABLE BOGOTA
8151 1486 2934 348 Uninet S.A. de C.V.
28573 1482 1043 79 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 612 72 86 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 568 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 543 234 96 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 774 146 34 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 454 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 203 12 16 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3526 3814 225 bellsouth.net, inc.
7029 2958 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1954 11106 667 Korea Telecom (KIX)
1785 1851 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4323 1614 1093 388 Time Warner Telecom
20115 1595 1545 625 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2958 2746 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1729 AppliedTheory Corporation
17974 1647 1611 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1623 1537 TPG Internet Pty Ltd
8402 1503 1489 Corbina telecom
28573 1482 1403 Types of queries are: POCs, o
22773 1498 1395 Cox Communications, Inc.
7552 1394 1387 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:812 /15:1454 /16:12154 /17:6335 /18:10453
/19:20516 /20:28826 /21:28194 /22:38237 /23:35881 /24:200124
/25:66 /26:85 /27:111 /28:276 /29:109 /30:487
/31:53 /32:474
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2571 2958 Windstream Communications Inc
6389 2175 3526 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1480 1503 Corbina telecom
30036 1382 1422 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 958 1498 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:418 2:490 4:19 5:1 6:3 8:354
12:1966 13:1 14:552 15:11 16:3 17:7
20:9 23:63 24:1689 27:1027 31:708 32:120
33:2 34:2 36:4 38:762 39:1 40:109
41:2682 42:61 43:1 44:3 46:1047 47:3
49:294 50:456 52:13 55:7 56:2 57:58
58:920 59:493 60:360 61:1139 62:1102 63:1983
64:4089 65:2302 66:4352 67:2047 68:1348 69:3254
70:953 71:389 72:1850 73:1 74:2685 75:442
76:330 77:892 78:885 79:493 80:1142 81:841
82:527 83:523 84:623 85:1156 86:410 87:907
88:359 89:1610 90:236 91:4278 92:538 93:1441
94:1312 95:1099 96:434 97:285 98:827 99:37
101:238 103:476 106:1 107:93 108:84 109:1191
110:676 111:805 112:359 113:487 114:589 115:714
116:896 117:719 118:901 119:1272 120:350 121:691
122:1580 123:1022 124:1352 125:1353 128:251 129:187
130:178 131:633 132:154 133:21 134:227 135:54
136:213 137:146 138:287 139:132 140:494 141:253
142:390 143:418 144:487 145:65 146:473 147:229
148:679 149:268 150:164 151:194 152:449 153:172
154:7 155:389 156:208 157:359 158:157 159:494
160:330 161:215 162:374 163:175 164:511 165:387
166:541 167:446 168:823 169:148 170:879 171:87
172:4 173:1761 174:598 175:432 176:299 177:375
178:1121 180:1151 181:39 182:660 183:239 184:396
185:1 186:1414 187:778 188:983 189:1157 190:5213
192:5965 193:5072 194:3578 195:3126 196:1281 197:168
198:3635 199:4229 200:5534 201:1707 202:8562 203:8554
204:4304 205:2364 206:2687 207:2820 208:4042 209:3613
210:2743 211:1473 212:2040 213:1810 214:808 215:97
216:4939 217:1613 218:574 219:339 220:1264 221:519
222:326 223:278
End of report
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