Routing Table Report 00:00 GMT Tue 15 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: 385294
Prefixes after maximum aggregation: 168040
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187577
Total ASes present in the Internet Routing Table: 39327
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32425
Origin ASes announcing only one prefix: 15512
Transit ASes present in the Internet Routing Table: 5276
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5448
Unregistered ASNs in the Routing Table: 901
Number of 32-bit ASNs allocated by the RIRs: 1947
Number of 32-bit ASNs visible in the Routing Table: 1626
Prefixes from 32-bit ASNs in the Routing Table: 3743
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2491058980
Equivalent to 148 /8s, 122 /16s and 139 /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: 161699
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93012
Total APNIC prefixes after maximum aggregation: 30039
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89528
Unique aggregates announced from the APNIC address blocks: 38358
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1280
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 108
Number of APNIC addresses announced to Internet: 629958400
Equivalent to 37 /8s, 140 /16s and 103 /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: 148934
Total ARIN prefixes after maximum aggregation: 76623
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120840
Unique aggregates announced from the ARIN address blocks: 48523
ARIN Region origin ASes present in the Internet Routing Table: 14758
ARIN Prefixes per ASN: 8.19
ARIN Region origin ASes announcing only one prefix: 5629
ARIN Region transit ASes present in the Internet Routing Table: 1550
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804349448
Equivalent to 47 /8s, 241 /16s and 102 /24s
Percentage of available ARIN address space announced: 63.9
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: 93994
Total RIPE prefixes after maximum aggregation: 51270
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85406
Unique aggregates announced from the RIPE address blocks: 54375
RIPE Region origin ASes present in the Internet Routing Table: 16136
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7998
RIPE Region transit ASes present in the Internet Routing Table: 2541
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1131
Number of RIPE addresses announced to Internet: 492145868
Equivalent to 29 /8s, 85 /16s and 140 /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: 36804
Total LACNIC prefixes after maximum aggregation: 7975
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36154
Unique aggregates announced from the LACNIC address blocks: 18597
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.37
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 371
Number of LACNIC addresses announced to Internet: 92954888
Equivalent to 5 /8s, 138 /16s and 97 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8616
Total AfriNIC prefixes after maximum aggregation: 2058
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6670
Unique aggregates announced from the AfriNIC address blocks: 2023
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 3.9
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: 27591680
Equivalent to 1 /8s, 165 /16s and 4 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1947 11103 661 Korea Telecom (KIX)
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 88 TPG Internet Pty Ltd
4755 1527 378 170 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1063 2071 304 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd.
18101 952 119 148 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 3544 3814 220 bellsouth.net, inc.
7029 2862 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 122 AppliedTheory Corporation
4323 1618 1093 388 Time Warner Telecom
20115 1596 1545 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1420 256 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1312 7044 860 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 1501 416 14 Corbina telecom
286 1084 810 201 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 598 111 186 Tellcom Iletisim Hizmetleri
20940 559 187 438 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 529 2074 406 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
8866 461 133 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 1488 2918 347 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 609 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 577 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 542 234 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 777 146 34 LINKdotNET AS number
8452 682 446 12 TEDATA
15475 444 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 241 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
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 3544 3814 220 bellsouth.net, inc.
7029 2862 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1947 11103 661 Korea Telecom (KIX)
1785 1851 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 88 TPG Internet Pty Ltd
4323 1618 1093 388 Time Warner Telecom
20115 1596 1545 624 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 2862 2650 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1729 AppliedTheory Corporation
17974 1645 1609 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1624 1536 TPG Internet Pty Ltd
8402 1501 1487 Corbina telecom
28573 1482 1403 Types of queries are: POCs, o
22773 1496 1393 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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:813 /15:1454 /16:12162 /17:6327 /18:10445
/19:20493 /20:28775 /21:28130 /22:38064 /23:35830 /24:200258
/25:66 /26:85 /27:110 /28:286 /29:116 /30:503
/31:53 /32:484
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2486 2862 Windstream Communications Inc
6389 2184 3544 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1478 1501 Corbina telecom
30036 1380 1420 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1023 1136 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:415 2:490 4:19 5:1 6:3 8:358
12:1969 13:1 14:549 15:11 16:3 17:7
20:9 23:63 24:1685 27:1034 31:706 32:120
33:2 34:2 36:4 38:761 39:1 40:110
41:2722 42:61 43:1 44:3 46:1047 47:3
49:299 50:452 52:13 55:5 56:2 57:57
58:911 59:492 60:360 61:1142 62:1101 63:1992
64:4084 65:2297 66:4346 67:2050 68:1357 69:3252
70:953 71:389 72:1850 73:1 74:2676 75:443
76:328 77:890 78:885 79:494 80:1140 81:841
82:525 83:523 84:625 85:1155 86:411 87:901
88:359 89:1611 90:236 91:4275 92:537 93:1432
94:1303 95:1097 96:431 97:285 98:950 99:37
101:234 103:466 106:7 107:91 108:81 109:1199
110:675 111:808 112:358 113:487 114:624 115:712
116:893 117:725 118:901 119:1267 120:349 121:690
122:1579 123:1029 124:1354 125:1351 128:247 129:187
130:164 131:631 132:154 133:21 134:223 135:54
136:213 137:146 138:287 139:132 140:494 141:253
142:390 143:407 144:493 145:64 146:472 147:229
148:690 149:267 150:164 151:194 152:449 153:172
154:7 155:389 156:211 157:362 158:154 159:490
160:333 161:209 162:374 163:174 164:511 165:387
166:543 167:442 168:819 169:146 170:880 171:87
172:4 173:1763 174:706 175:432 176:300 177:363
178:1103 180:1152 181:38 182:659 183:239 184:394
185:1 186:1410 187:782 188:966 189:1144 190:5216
192:5960 193:5074 194:3574 195:3126 196:1289 197:168
198:3631 199:4234 200:5519 201:1705 202:8548 203:8544
204:4311 205:2383 206:2691 207:2821 208:4035 209:3616
210:2735 211:1470 212:2042 213:1811 214:811 215:96
216:4941 217:1609 218:573 219:339 220:1263 221:518
222:326 223:273
End of report
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