The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Tuesday, December 10, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Wed 11 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 470683
Prefixes after maximum aggregation: 189027
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235491
Total ASes present in the Internet Routing Table: 45573
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35492
Origin ASes announcing only one prefix: 16299
Transit ASes present in the Internet Routing Table: 5822
Transit-only ASes present in the Internet Routing Table: 152
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1111
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 5480
Number of 32-bit ASNs visible in the Routing Table: 4259
Prefixes from 32-bit ASNs in the Routing Table: 13350
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1350
Number of addresses announced to Internet: 2656733696
Equivalent to 158 /8s, 90 /16s and 138 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163149

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110405
Total APNIC prefixes after maximum aggregation: 33599
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112665
Unique aggregates announced from the APNIC address blocks: 48145
APNIC Region origin ASes present in the Internet Routing Table: 4851
APNIC Prefixes per ASN: 23.23
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 813
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 780
Number of APNIC addresses announced to Internet: 728368384
Equivalent to 43 /8s, 106 /16s and 5 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162529
Total ARIN prefixes after maximum aggregation: 81577
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163383
Unique aggregates announced from the ARIN address blocks: 75708
ARIN Region origin ASes present in the Internet Routing Table: 15914
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 6013
ARIN Region transit ASes present in the Internet Routing Table: 1627
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 45
Number of ARIN addresses announced to Internet: 1072861696
Equivalent to 63 /8s, 242 /16s and 146 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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: 119235
Total RIPE prefixes after maximum aggregation: 61147
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123078
Unique aggregates announced from the RIPE address blocks: 79137
RIPE Region origin ASes present in the Internet Routing Table: 17535
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8302
RIPE Region transit ASes present in the Internet Routing Table: 2779
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2511
Number of RIPE addresses announced to Internet: 656210688
Equivalent to 39 /8s, 28 /16s and 251 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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: 52644
Total LACNIC prefixes after maximum aggregation: 9884
LACNIC Deaggregation factor: 5.33
Prefixes being announced from the LACNIC address blocks: 57865
Unique aggregates announced from the LACNIC address blocks: 27384
LACNIC Region origin ASes present in the Internet Routing Table: 2042
LACNIC Prefixes per ASN: 28.34
LACNIC Region origin ASes announcing only one prefix: 551
LACNIC Region transit ASes present in the Internet Routing Table: 398
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 915
Number of LACNIC addresses announced to Internet: 146256640
Equivalent to 8 /8s, 183 /16s and 179 /24s
Percentage of available LACNIC address space announced: 87.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11706
Total AfriNIC prefixes after maximum aggregation: 2590
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12341
Unique aggregates announced from the AfriNIC address blocks: 4056
AfriNIC Region origin ASes present in the Internet Routing Table: 693
AfriNIC Prefixes per ASN: 17.81
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 138
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48535296
Equivalent to 2 /8s, 228 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 48.2

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 2726 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2115 319 110 TPG Internet Pty Ltd
4755 1796 392 190 TATA Communications formerly
9829 1554 1248 47 BSNL National Internet Backbo
9583 1329 103 542 Sify Limited
4808 1291 2195 371 CNCGROUP IP network: China169
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1173 1080 13 Vietel Corporation
24560 1099 382 167 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2300 2939 138 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2043 686 131 PaeTec Communications, Inc.
20115 1682 1658 597 Charter Communications
4323 1646 1082 417 Time Warner Telecom
701 1509 11144 782 MCI Communications Services,
30036 1381 311 576 Mediacom Communications Corp
7018 1330 17797 870 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1939 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1184 448 893 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 794 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 548 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3366 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1736 1161 231 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1360 2855 422 UniNet S.A. de C.V.
11830 869 364 15 Instituto Costarricense de El
27947 817 93 88 Telconet S.A
6147 789 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 774 434 60 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 873 338 27 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 413 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 249 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3366 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2726 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2300 2939 138 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2115 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2043 686 131 PaeTec Communications, Inc.
8402 1939 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2726 2638 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2300 2162 Cox Communications, Inc.
7545 2115 2005 TPG Internet Pty Ltd
8402 1939 1923 OJSC "Vimpelcom"
1785 2043 1912 PaeTec Communications, Inc.
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:925 /15:1628 /16:12795 /17:6732 /18:11218
/19:23110 /20:32921 /21:35633 /22:50150 /23:43722 /24:250938
/25:3 /26:5 /27:10 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1641 1939 OJSC "Vimpelcom"
22773 1551 2300 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1083 2043 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:925 2:861 3:3 4:16 5:810 6:21
8:614 12:1881 13:3 14:895 15:11 16:3
17:19 18:19 20:36 23:614 24:1758 27:1703
31:1524 32:45 33:2 34:5 36:101 37:1946
38:916 39:5 40:181 41:3250 42:238 44:14
46:2080 47:10 49:699 50:862 52:12 54:44
55:6 56:4 57:25 58:1083 59:583 60:368
61:1467 62:1234 63:1971 64:4393 65:2331 66:4154
67:2122 68:1095 69:3276 70:905 71:509 72:2015
74:2573 75:324 76:293 77:1207 78:1021 79:669
80:1283 81:1044 82:631 83:756 84:587 85:1255
86:382 87:1035 88:522 89:1569 90:151 91:5723
92:619 93:1615 94:2111 95:1545 96:517 97:349
98:1077 99:41 100:33 101:692 103:3793 105:531
106:146 107:239 108:537 109:2010 110:975 111:1125
112:585 113:799 114:751 115:1045 116:1009 117:821
118:1228 119:1278 120:338 121:759 122:1870 123:1266
124:1353 125:1436 128:639 129:232 130:353 131:668
132:354 133:158 134:308 135:72 136:276 137:268
138:351 139:171 140:198 141:343 142:549 143:407
144:503 145:89 146:556 147:446 148:775 149:368
150:152 151:484 152:414 153:207 154:45 155:516
156:309 157:418 158:285 159:696 160:360 161:457
162:914 163:226 164:622 165:579 166:276 167:637
168:1040 169:123 170:1129 171:185 172:11 173:1624
174:661 175:535 176:1332 177:2511 178:1878 179:311
180:1585 181:884 182:1394 183:471 184:619 185:1109
186:2640 187:1453 188:1965 189:1259 190:7276 192:7074
193:5481 194:4031 195:3382 196:1337 197:1060 198:4763
199:5503 200:5988 201:2530 202:8941 203:8890 204:4524
205:2639 206:2888 207:2804 208:3966 209:3689 210:3012
211:1608 212:2173 213:1994 214:891 215:84 216:5426
217:1727 218:633 219:317 220:1266 221:587 222:330
223:539

End of report
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