Routing Table Report 00:00 GMT Thu 26 Jan, 2012
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: 397758
Prefixes after maximum aggregation: 170391
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191510
Total ASes present in the Internet Routing Table: 39928
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32778
Origin ASes announcing only one prefix: 15523
Transit ASes present in the Internet Routing Table: 5264
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4907
Unregistered ASNs in the Routing Table: 129
Number of 32-bit ASNs allocated by the RIRs: 2213
Number of 32-bit ASNs visible in the Routing Table: 1886
Prefixes from 32-bit ASNs in the Routing Table: 4569
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2512722150
Equivalent to 149 /8s, 197 /16s and 24 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166739
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95999
Total APNIC prefixes after maximum aggregation: 30452
APNIC Deaggregation factor: 3.15
Prefixes being announced from the APNIC address blocks: 92343
Unique aggregates announced from the APNIC address blocks: 38994
APNIC Region origin ASes present in the Internet Routing Table: 4622
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 136
Number of APNIC addresses announced to Internet: 635203072
Equivalent to 37 /8s, 220 /16s and 110 /24s
Percentage of available APNIC address space announced: 80.6
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: 150591
Total ARIN prefixes after maximum aggregation: 77443
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122315
Unique aggregates announced from the ARIN address blocks: 49160
ARIN Region origin ASes present in the Internet Routing Table: 14886
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1532
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805154824
Equivalent to 47 /8s, 253 /16s and 176 /24s
Percentage of available ARIN address space announced: 64.0
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: 99551
Total RIPE prefixes after maximum aggregation: 52271
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 90639
Unique aggregates announced from the RIPE address blocks: 55836
RIPE Region origin ASes present in the Internet Routing Table: 16292
RIPE Prefixes per ASN: 5.56
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2538
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1312
Number of RIPE addresses announced to Internet: 498307724
Equivalent to 29 /8s, 179 /16s and 146 /24s
Percentage of available RIPE address space announced: 80.3
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: 38016
Total LACNIC prefixes after maximum aggregation: 8076
LACNIC Deaggregation factor: 4.71
Prefixes being announced from the LACNIC address blocks: 37546
Unique aggregates announced from the LACNIC address blocks: 19358
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.01
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 420
Number of LACNIC addresses announced to Internet: 95751176
Equivalent to 5 /8s, 181 /16s and 12 /24s
Percentage of available LACNIC address space announced: 63.4
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: 8844
Total AfriNIC prefixes after maximum aggregation: 2076
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6848
Unique aggregates announced from the AfriNIC address blocks: 2119
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 30836736
Equivalent to 1 /8s, 214 /16s and 136 /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 1900 11097 660 Korea Telecom (KIX)
17974 1716 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 87 TPG Internet Pty Ltd
4755 1524 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1424 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1119 81 483 Sify Limited
24560 1015 385 167 Bharti Airtel Ltd.
4808 984 1933 281 CNCGROUP IP network: China169
17488 949 161 223 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 3442 3807 201 bellsouth.net, inc.
7029 3266 1046 212 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 122 AppliedTheory Corporation
20115 1628 1554 624 Charter Communications
4323 1607 1078 384 Time Warner Telecom
22773 1520 2910 109 Cox Communications, Inc.
30036 1440 251 735 Mediacom Communications Corp
19262 1385 4683 400 Verizon Global Networks
7018 1307 7026 854 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 1719 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
286 1111 806 203 KPNQwest Backbone AS
15557 1095 2161 64 LDCOM NETWORKS
6830 646 1928 414 UPC Distribution Services
34984 638 188 171 Tellcom Iletisim Hizmetleri
20940 592 193 467 Akamai Technologies European
8551 578 360 81 Bezeq International
12479 559 641 56 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
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 1729 322 168 TVCABLE BOGOTA
28573 1616 1068 77 Types of queries are: POCs, o
8151 1501 2972 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 646 73 97 Telconet S.A
11172 588 85 106 Alestra
22047 582 322 17 Types of queries are: POCs, o
3816 555 238 92 COLOMBIA TELECOMUNICACIONES S
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 549 434 70 AVANTEL, 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 1157 958 13 TEDATA
24863 831 155 42 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
29571 215 17 12 Ci Telecom Autonomous system
33776 199 11 17 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 190 80 8 RAYA Telecom - Egypt
16637 165 664 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 3442 3807 201 bellsouth.net, inc.
7029 3266 1046 212 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1900 11097 660 Korea Telecom (KIX)
1785 1866 680 122 AppliedTheory Corporation
10620 1729 322 168 TVCABLE BOGOTA
8402 1719 480 15 Corbina telecom
17974 1716 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 87 TPG Internet Pty Ltd
20115 1628 1554 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 3266 3054 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1744 AppliedTheory Corporation
8402 1719 1704 Corbina telecom
17974 1716 1680 PT TELEKOMUNIKASI INDONESIA
10620 1729 1561 TVCABLE BOGOTA
7545 1640 1553 TPG Internet Pty Ltd
28573 1616 1539 Types of queries are: POCs, o
7552 1424 1417 Vietel Corporation
22773 1520 1411 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.48.64.0/18 16265 LeaseWeb AS Macro
37.52.0.0/14 6849 JSC UKRTELECOM,
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 /11:80 /12:232
/13:459 /14:823 /15:1493 /16:12296 /17:6424 /18:10641
/19:20856 /20:29318 /21:29504 /22:39715 /23:37312 /24:206815
/25:69 /26:84 /27:104 /28:292 /29:124 /30:551
/31:51 /32:456
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2870 3266 Windstream Communications Inc
6389 2112 3442 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1698 1719 Corbina telecom
10620 1624 1729 TVCABLE BOGOTA
30036 1399 1440 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1064 1866 AppliedTheory Corporation
15557 1046 1095 LDCOM NETWORKS
7011 1033 1150 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:508 2:473 4:18 5:1 6:3 8:380
12:1960 13:1 14:594 15:11 16:3 17:6
20:9 23:119 24:1725 27:1187 31:880 32:124
33:2 34:2 36:8 37:104 38:799 39:1
40:114 41:3002 42:87 43:1 44:3 46:1261
47:3 49:323 50:517 52:13 54:1 55:5
56:3 57:51 58:957 59:491 60:346 61:1188
62:931 63:1992 64:4147 65:2279 66:4432 67:2055
68:1333 69:3262 70:962 71:431 72:1827 73:1
74:2691 75:458 76:332 77:980 78:922 79:528
80:1210 81:880 82:570 83:534 84:589 85:1158
86:748 87:917 88:358 89:1550 90:257 91:4471
92:534 93:1553 94:1326 95:1130 96:417 97:301
98:787 99:38 100:20 101:253 103:689 106:4
107:135 108:135 109:1474 110:710 111:841 112:429
113:526 114:612 115:768 116:901 117:742 118:923
119:1285 120:356 121:704 122:1625 123:1064 124:1367
125:1357 128:534 129:193 130:212 131:591 132:162
133:21 134:235 135:59 136:213 137:153 138:290
139:157 140:487 141:261 142:381 143:411 144:516
145:68 146:486 147:236 148:701 149:271 150:165
151:193 152:446 153:170 154:7 155:415 156:210
157:369 158:154 159:508 160:333 161:237 162:340
163:188 164:531 165:411 166:561 167:457 168:773
169:148 170:835 171:110 172:4 173:1798 174:571
175:437 176:375 177:467 178:1227 180:1246 181:43
182:712 183:269 184:440 185:1 186:1513 187:834
188:968 189:1165 190:5388 192:6004 193:5500 194:4248
195:3447 196:1295 197:171 198:3606 199:4341 200:5714
201:1699 202:8519 203:8617 204:4356 205:2443 206:2774
207:2814 208:4046 209:3585 210:2774 211:1484 212:2022
213:1838 214:847 215:96 216:5015 217:1494 218:561
219:342 220:1257 221:558 222:326 223:270
End of report
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