Routing Table Report 00:00 GMT Thu 15 Dec, 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: 390399
Prefixes after maximum aggregation: 169203
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 189080
Total ASes present in the Internet Routing Table: 39583
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32550
Origin ASes announcing only one prefix: 15541
Transit ASes present in the Internet Routing Table: 5294
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6137
Unregistered ASNs in the Routing Table: 1011
Number of 32-bit ASNs allocated by the RIRs: 2086
Number of 32-bit ASNs visible in the Routing Table: 1739
Prefixes from 32-bit ASNs in the Routing Table: 4151
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2502409510
Equivalent to 149 /8s, 39 /16s and 189 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 163577
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93933
Total APNIC prefixes after maximum aggregation: 30177
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90408
Unique aggregates announced from the APNIC address blocks: 38536
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 726
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 122
Number of APNIC addresses announced to Internet: 631678976
Equivalent to 37 /8s, 166 /16s and 168 /24s
Percentage of available APNIC address space announced: 80.1
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: 149248
Total ARIN prefixes after maximum aggregation: 77063
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121130
Unique aggregates announced from the ARIN address blocks: 48709
ARIN Region origin ASes present in the Internet Routing Table: 14820
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1541
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804573704
Equivalent to 47 /8s, 244 /16s and 210 /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: 97019
Total RIPE prefixes after maximum aggregation: 51758
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88483
Unique aggregates announced from the RIPE address blocks: 55019
RIPE Region origin ASes present in the Internet Routing Table: 16206
RIPE Prefixes per ASN: 5.46
RIPE Region origin ASes announcing only one prefix: 8013
RIPE Region transit ASes present in the Internet Routing Table: 2550
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1212
Number of RIPE addresses announced to Internet: 494392012
Equivalent to 29 /8s, 119 /16s and 210 /24s
Percentage of available RIPE address space announced: 79.6
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: 37338
Total LACNIC prefixes after maximum aggregation: 8046
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36728
Unique aggregates announced from the LACNIC address blocks: 18878
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.62
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 389
Number of LACNIC addresses announced to Internet: 94756616
Equivalent to 5 /8s, 165 /16s and 223 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8467
Total AfriNIC prefixes after maximum aggregation: 2087
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6506
Unique aggregates announced from the AfriNIC address blocks: 2068
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.93
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30852864
Equivalent to 1 /8s, 214 /16s and 199 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1945 11096 661 Korea Telecom (KIX)
17974 1704 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4755 1511 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1427 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
24560 996 385 167 Bharti Airtel Ltd.
18101 963 122 157 Reliance Infocom Ltd Internet
17488 948 166 226 Hathway IP Over Cable Interne
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 3479 3814 218 bellsouth.net, inc.
7029 2856 1042 211 Windstream Communications Inc
18566 2092 382 176 Covad Communications
1785 1852 680 121 AppliedTheory Corporation
4323 1619 1089 387 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1459 261 678 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1307 7030 856 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 1506 480 15 Corbina telecom
286 1097 807 198 KPNQwest Backbone AS
15557 1036 2161 64 LDCOM NETWORKS
2118 1033 99 14 EUnet/RELCOM Autonomous Syste
6830 647 1927 412 UPC Distribution Services
34984 625 132 195 Tellcom Iletisim Hizmetleri
12479 549 630 48 Uni2 Autonomous System
20940 549 178 437 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3292 531 2106 407 TDC Tele Danmark
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 1717 318 155 TVCABLE BOGOTA
28573 1563 1063 75 Types of queries are: POCs, o
8151 1495 2965 342 Uninet S.A. de C.V.
7303 1240 751 175 Telecom Argentina Stet-France
27947 631 73 93 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 562 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 90 COLOMBIA TELECOMUNICACIONES S
10481 543 429 25 Prima S.A.
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
8452 963 958 13 TEDATA
24863 789 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 236 13 10 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3479 3814 218 bellsouth.net, inc.
7029 2856 1042 211 Windstream Communications Inc
18566 2092 382 176 Covad Communications
4766 1945 11096 661 Korea Telecom (KIX)
1785 1852 680 121 AppliedTheory Corporation
10620 1717 318 155 TVCABLE BOGOTA
17974 1704 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4323 1619 1089 387 Time Warner Telecom
20115 1604 1549 626 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 2856 2645 Windstream Communications Inc
18566 2092 1916 Covad Communications
1785 1852 1731 AppliedTheory Corporation
17974 1704 1666 PT TELEKOMUNIKASI INDONESIA
10620 1717 1562 TVCABLE BOGOTA
7545 1628 1542 TPG Internet Pty Ltd
8402 1506 1491 Corbina telecom
28573 1563 1488 Types of queries are: POCs, o
7552 1427 1420 Vietel Corporation
22773 1513 1408 Cox Communications, Inc.
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
37.1.224.0/21 51059 Brightbox Systems Ltd
37.7.0.0/16 8374 Polkomtel S.A.
37.8.0.0/18 15975 Palnet Communications Ltd. AS
37.8.128.0/20 20875 HPT Mostar
37.8.144.0/20 42038 VladLink LTD AS
37.9.0.0/19 44050 Petersburg Internet Network L
37.9.48.0/20 44050 Petersburg Internet Network L
37.9.168.0/21 51013 Websupport s.r.o.
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /12:237
/13:465 /14:818 /15:1474 /16:12190 /17:6361 /18:10511
/19:20651 /20:29046 /21:28527 /22:38687 /23:36346 /24:203183
/25:69 /26:85 /27:112 /28:297 /29:114 /30:547
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2480 2856 Windstream Communications Inc
6389 2122 3479 bellsouth.net, inc.
18566 2042 2092 Covad Communications
10620 1612 1717 TVCABLE BOGOTA
8402 1482 1506 Corbina telecom
30036 1419 1459 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1056 1852 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 992 1036 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:452 2:458 4:19 5:1 6:3 8:362
12:1945 13:1 14:562 15:11 16:3 17:7
20:9 23:74 24:1701 27:1122 31:731 32:122
33:2 34:2 36:4 38:774 39:1 40:114
41:2933 42:79 43:1 44:3 46:1141 47:3
49:279 50:465 52:13 55:5 56:2 57:55
58:949 59:486 60:344 61:1190 62:953 63:1988
64:4122 65:2304 66:4397 67:2035 68:1367 69:3240
70:964 71:378 72:1807 73:1 74:2694 75:445
76:332 77:940 78:872 79:445 80:1176 81:855
82:543 83:532 84:576 85:1169 86:739 87:907
88:357 89:1603 90:248 91:4363 92:542 93:1525
94:1320 95:1096 96:400 97:286 98:783 99:38
101:248 103:554 106:11 107:112 108:101 109:1412
110:695 111:823 112:379 113:505 114:623 115:716
116:906 117:730 118:901 119:1274 120:343 121:702
122:1559 123:1029 124:1403 125:1342 128:317 129:191
130:186 131:574 132:162 133:21 134:227 135:54
136:213 137:150 138:286 139:134 140:483 141:255
142:384 143:393 144:488 145:66 146:477 147:233
148:687 149:272 150:164 151:192 152:446 153:171
154:7 155:397 156:210 157:366 158:155 159:504
160:341 161:221 162:362 163:184 164:520 165:409
166:542 167:457 168:819 169:147 170:826 171:93
172:4 173:1810 174:600 175:432 176:347 177:436
178:1142 180:1224 181:38 182:676 183:260 184:403
185:1 186:1409 187:788 188:951 189:1182 190:5275
192:5997 193:5143 194:4328 195:3431 196:1295 197:174
198:3636 199:4236 200:5509 201:1717 202:8608 203:8532
204:4338 205:2411 206:2693 207:2849 208:4027 209:3593
210:2772 211:1481 212:2024 213:1809 214:820 215:95
216:4958 217:1499 218:584 219:345 220:1257 221:529
222:327 223:264
End of report
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