* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Tue 21 Aug, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 414483
Prefixes after maximum aggregation: 175219
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 206096
Total ASes present in the Internet Routing Table: 38937
Prefixes per ASN: 10.64
Origin-only ASes present in the Internet Routing Table: 33512
Origin ASes announcing only one prefix: 15762
Transit ASes present in the Internet Routing Table: 5425
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1245
Unregistered ASNs in the Routing Table: 228
Number of 32-bit ASNs allocated by the RIRs: 3143
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 7115
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 174
Number of addresses announced to Internet: 2608754944
Equivalent to 155 /8s, 126 /16s and 113 /24s
Percentage of available address space announced: 70.4
Percentage of allocated address space announced: 70.5
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.2
Total number of prefixes smaller than registry allocations: 144044
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96276
Total APNIC prefixes after maximum aggregation: 31082
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 97446
Unique aggregates announced from the APNIC address blocks: 42385
APNIC Region origin ASes present in the Internet Routing Table: 4689
APNIC Prefixes per ASN: 20.78
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 705455872
Equivalent to 42 /8s, 12 /16s and 103 /24s
Percentage of available APNIC address space announced: 82.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 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: 152456
Total ARIN prefixes after maximum aggregation: 77472
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153446
Unique aggregates announced from the ARIN address blocks: 68746
ARIN Region origin ASes present in the Internet Routing Table: 15165
ARIN Prefixes per ASN: 10.12
ARIN Region origin ASes announcing only one prefix: 5752
ARIN Region transit ASes present in the Internet Routing Table: 1531
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1084199680
Equivalent to 64 /8s, 159 /16s and 147 /24s
Percentage of available ARIN address space announced: 57.4
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, 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: 105845
Total RIPE prefixes after maximum aggregation: 56112
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 108079
Unique aggregates announced from the RIPE address blocks: 69193
RIPE Region origin ASes present in the Internet Routing Table: 16764
RIPE Prefixes per ASN: 6.45
RIPE Region origin ASes announcing only one prefix: 8138
RIPE Region transit ASes present in the Internet Routing Table: 2663
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 640672768
Equivalent to 38 /8s, 47 /16s and 228 /24s
Percentage of available RIPE address space announced: 93.1
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, 196608-199679
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,
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: 42433
Total LACNIC prefixes after maximum aggregation: 8304
LACNIC Deaggregation factor: 5.11
Prefixes being announced from the LACNIC address blocks: 45250
Unique aggregates announced from the LACNIC address blocks: 22147
LACNIC Region origin ASes present in the Internet Routing Table: 1615
LACNIC Prefixes per ASN: 28.02
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 305
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 114135808
Equivalent to 6 /8s, 205 /16s and 147 /24s
Percentage of available LACNIC address space announced: 68.0
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9624
Total AfriNIC prefixes after maximum aggregation: 2194
AfriNIC Deaggregation factor: 4.39
Prefixes being announced from the AfriNIC address blocks: 10087
Unique aggregates announced from the AfriNIC address blocks: 3482
AfriNIC Region origin ASes present in the Internet Routing Table: 555
AfriNIC Prefixes per ASN: 18.17
AfriNIC Region origin ASes announcing only one prefix: 170
AfriNIC Region transit ASes present in the Internet Routing Table: 121
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 41684736
Equivalent to 2 /8s, 124 /16s and 15 /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, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17974 2342 702 54 PT Telekomunikasi Indonesia
4766 2032 11107 792 Korea Telecom (KIX)
7545 1710 301 88 TPG Internet Pty Ltd
4755 1585 385 156 TATA Communications formerly
9829 1312 1084 31 National Internet Backbone
9583 1170 86 509 Sify Limited
7552 1092 1062 11 Vietel Corporation
24560 1039 386 160 Bharti Airtel Ltd., Telemedia
9498 999 294 74 BHARTI Airtel Ltd.
4808 973 1944 292 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3446 990 154 Windstream Communications Inc
6389 3366 3772 195 BellSouth.net Inc.
18566 2088 382 180 Covad Communications Co.
1785 1939 680 129 PaeTec Communications, Inc.
22773 1729 2914 127 Cox Communications Inc.
20115 1650 1574 607 Charter Communications
4323 1571 1042 386 tw telecom holdings, inc.
30036 1406 278 784 Mediacom Communications Corp
7018 1249 10067 817 AT&T Services, Inc.
11492 1195 217 347 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1495 544 16 Corbina telecom
12479 827 764 85 France Telecom Espana SA
34984 750 189 175 BILISIM TELEKOM
6830 715 2311 446 UPC Broadband
31148 711 37 9 FreeNet ISP
20940 686 225 543 Akamai Technologies European
2118 685 97 14 EUnet/RELCOM Autonomous Syste
13188 636 100 9 Ukraine
58113 616 69 362 LIR DATACENTER TELECOM SRL
8551 598 364 61 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 2088 355 216 Types of queries are: POCs, o
28573 2039 1242 55 Types of queries are: POCs, o
7303 1564 1033 201 Telecom Argentina S.A.
6503 1521 435 70 Axtel, S.A.B. de C.V.
8151 1332 3012 339 Uninet S.A. de C.V.
6458 881 81 15 Telgua
27947 691 75 90 Telconet S.A
3816 604 255 90 Types of queries are: POCs, o
11172 591 101 70 Alestra, S. de R.L. de C.V.
22047 580 326 15 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 892 958 13 TEDATA
24863 869 275 36 LINKdotNET AS number
36998 532 48 3 MOBITEL
6713 517 650 19 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 262 904 223 The Internet Solution
12258 195 28 62 Vodacom Internet Company
33776 194 13 11 Starcomms Nigeria Limited
15706 193 32 6 Sudatel Internet Exchange Aut
29975 191 667 21 Vodacom
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3446 990 154 Windstream Communications Inc
6389 3366 3772 195 BellSouth.net Inc.
17974 2342 702 54 PT Telekomunikasi Indonesia
10620 2088 355 216 Types of queries are: POCs, o
18566 2088 382 180 Covad Communications Co.
28573 2039 1242 55 Types of queries are: POCs, o
4766 2032 11107 792 Korea Telecom (KIX)
1785 1939 680 129 PaeTec Communications, Inc.
22773 1729 2914 127 Cox Communications Inc.
7545 1710 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3366 3171 BellSouth.net Inc.
17974 2342 2288 PT Telekomunikasi Indonesia
28573 2039 1984 Types of queries are: POCs, o
18566 2088 1908 Covad Communications Co.
10620 2088 1872 Types of queries are: POCs, o
1785 1939 1810 PaeTec Communications, Inc.
7545 1710 1622 TPG Internet Pty Ltd
22773 1729 1602 Cox Communications Inc.
8402 1495 1479 Corbina telecom
6503 1521 1451 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
59414 UNALLOCATED 5.102.144.0/21 15576 NTS workspace AG
59395 UNALLOCATED 5.133.16.0/21 12658 Dexterity Networks L
59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH
59521 UNALLOCATED 5.134.192.0/21 29518 Bredband2 AB
59581 UNALLOCATED 5.149.8.0/21 25577 C4L main AS
59457 UNALLOCATED 5.149.64.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.65.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.66.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.67.0/24 43179 Team Consulting d.o.
59457 UNALLOCATED 5.149.68.0/24 43179 Team Consulting d.o.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
27.112.114.0/24 23884 Proimage Engineering and Comm
31.169.48.0/21 50304 Blix Solutions AS
Complete listing at http://thyme.rand.apnic.net/london/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 /9:14 /10:30 /11:84 /12:236
/13:473 /14:842 /15:1538 /16:12320 /17:6420 /18:10679
/19:20874 /20:29992 /21:31613 /22:41437 /23:39366 /24:217966
/25:11 /26:22 /27:18 /28:147 /29:159 /30:83
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2806 3446 Windstream Communications Inc
18566 2038 2088 Covad Communications Co.
6389 1856 3366 BellSouth.net Inc.
30036 1341 1406 Mediacom Communications Corp
8402 1236 1495 Corbina telecom
11492 1158 1195 CABLE ONE, INC.
22773 1135 1729 Cox Communications Inc.
6503 1047 1521 Axtel, S.A.B. de C.V.
1785 1041 1939 PaeTec Communications, Inc.
7011 929 1190 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:535 2:735 3:1 4:13 5:361 6:3
8:438 12:1975 13:1 14:631 15:11 16:3
17:6 20:27 23:199 24:1798 27:1331 31:1050
32:51 33:2 34:2 36:8 37:732 38:819
39:1 40:133 41:2858 42:155 44:3 46:1580
47:2 49:435 50:580 52:13 54:16 55:6
56:1 57:38 58:927 59:514 60:234 61:1172
62:954 63:2003 64:4255 65:2241 66:4527 67:2053
68:1158 69:3201 70:986 71:523 72:1866 74:2605
75:491 76:330 77:941 78:906 79:496 80:1227
81:955 82:643 83:535 84:511 85:1131 86:463
87:937 88:349 89:1808 90:298 91:5111 92:583
93:1339 94:1585 95:1256 96:408 97:317 98:897
99:36 100:22 101:256 103:1396 105:512 106:114
107:194 108:411 109:1499 110:799 111:952 112:427
113:678 114:654 115:827 116:861 117:721 118:938
119:1219 120:293 121:678 122:1614 123:1163 124:1313
125:1265 128:476 129:178 130:263 131:620 132:294
133:22 134:235 135:61 136:217 137:236 138:338
139:182 140:474 141:267 142:465 143:355 144:483
145:79 146:493 147:255 148:759 149:299 150:148
151:168 152:456 153:175 154:19 155:411 156:221
157:337 158:179 159:561 160:347 161:388 162:400
163:178 164:671 165:409 166:563 167:540 168:952
169:124 170:906 171:145 172:5 173:1724 174:626
175:429 176:599 177:1022 178:1657 180:1340 181:123
182:1026 183:220 184:592 186:2087 187:1124 188:1466
189:1568 190:6144 192:5961 193:5462 194:4235 195:3237
196:1230 197:205 198:3673 199:4871 200:5920 201:1966
202:8477 203:8548 204:4319 205:2515 206:2726 207:2786
208:4038 209:3622 210:2715 211:1535 212:2030 213:1806
214:874 215:84 216:5101 217:1549 218:534 219:299
220:1236 221:510 222:301 223:369
End of report
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